diff --git a/src/components/FavoriteRelaysSetting/FavoriteRelayList.tsx b/src/components/FavoriteRelaysSetting/FavoriteRelayList.tsx
index 16a94a0..edbd25c 100644
--- a/src/components/FavoriteRelaysSetting/FavoriteRelayList.tsx
+++ b/src/components/FavoriteRelaysSetting/FavoriteRelayList.tsx
@@ -20,7 +20,9 @@ import RelayItem from './RelayItem'
 
 export default function FavoriteRelayList() {
   const { t } = useTranslation()
-  const { favoriteRelays, reorderFavoriteRelays } = useFavoriteRelays()
+  const { favoriteRelays, blockedRelays, reorderFavoriteRelays } = useFavoriteRelays()
+  
+  // Show all relays including blocked ones (they'll be marked visually)
 
   const sensors = useSensors(
     useSensor(PointerSensor),
@@ -53,7 +55,7 @@ export default function FavoriteRelayList() {
         <SortableContext items={favoriteRelays} strategy={verticalListSortingStrategy}>
           <div className="grid gap-2">
             {favoriteRelays.map((relay) => (
-              <RelayItem key={relay} relay={relay} />
+              <RelayItem key={relay} relay={relay} isBlocked={blockedRelays.includes(relay)} />
             ))}
           </div>
         </SortableContext>
diff --git a/src/components/FavoriteRelaysSetting/RelayItem.tsx b/src/components/FavoriteRelaysSetting/RelayItem.tsx
index ae57e25..9a01fed 100644
--- a/src/components/FavoriteRelaysSetting/RelayItem.tsx
+++ b/src/components/FavoriteRelaysSetting/RelayItem.tsx
@@ -3,10 +3,12 @@ import { useSecondaryPage } from '@/PageManager'
 import { useSortable } from '@dnd-kit/sortable'
 import { CSS } from '@dnd-kit/utilities'
 import { GripVertical } from 'lucide-react'
+import { useTranslation } from 'react-i18next'
 import RelayIcon from '../RelayIcon'
 import SaveRelayDropdownMenu from '../SaveRelayDropdownMenu'
 
-export default function RelayItem({ relay }: { relay: string }) {
+export default function RelayItem({ relay, isBlocked = false }: { relay: string; isBlocked?: boolean }) {
+  const { t } = useTranslation()
   const { push } = useSecondaryPage()
   const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({
     id: relay
@@ -20,7 +22,7 @@ export default function RelayItem({ relay }: { relay: string }) {
 
   return (
     <div
-      className="relative group clickable flex gap-2 border rounded-lg p-2 pr-2.5 items-center justify-between select-none"
+      className={`relative group clickable flex gap-2 border rounded-lg p-2 pr-2.5 items-center justify-between select-none ${isBlocked ? 'opacity-60' : ''}`}
       ref={setNodeRef}
       style={style}
       onClick={() => push(toRelay(relay))}
@@ -33,9 +35,16 @@ export default function RelayItem({ relay }: { relay: string }) {
         >
           <GripVertical className="size-4 text-muted-foreground" />
         </div>
-        <div className="flex gap-2 items-center flex-1">
+        <div className="flex gap-2 items-center flex-1 min-w-0">
           <RelayIcon url={relay} />
-          <div className="flex-1 w-0 truncate font-semibold">{relay}</div>
+          <div className="flex items-center gap-2 flex-1 min-w-0">
+            <div className="flex-1 truncate font-semibold">{relay}</div>
+            {isBlocked && (
+              <span className="text-xs text-muted-foreground whitespace-nowrap">
+                ({t('blocked')})
+              </span>
+            )}
+          </div>
         </div>
       </div>
       <SaveRelayDropdownMenu urls={[relay]} />
diff --git a/src/components/FeedSwitcher/index.tsx b/src/components/FeedSwitcher/index.tsx
index d3d3736..3379851 100644
--- a/src/components/FeedSwitcher/index.tsx
+++ b/src/components/FeedSwitcher/index.tsx
@@ -12,8 +12,11 @@ import RelaySetCard from '../RelaySetCard'
 export default function FeedSwitcher({ close }: { close?: () => void }) {
   const { t } = useTranslation()
   const { pubkey } = useNostr()
-  const { relaySets, favoriteRelays } = useFavoriteRelays()
+  const { relaySets, favoriteRelays, blockedRelays } = useFavoriteRelays()
   const { feedInfo, switchFeed } = useFeed()
+  
+  // Filter out blocked relays for display
+  const visibleRelays = favoriteRelays.filter(relay => !blockedRelays.includes(relay))
 
   return (
     <div className="space-y-2">
@@ -53,7 +56,7 @@ export default function FeedSwitcher({ close }: { close?: () => void }) {
         </FeedSwitcherItem>
       )}
 
-      {favoriteRelays.length > 0 && (
+      {visibleRelays.length > 0 && (
         <FeedSwitcherItem
           isActive={feedInfo.feedType === 'all-favorites'}
           onClick={() => {
@@ -94,7 +97,7 @@ export default function FeedSwitcher({ close }: { close?: () => void }) {
             }}
           />
         ))}
-      {favoriteRelays.map((relay) => (
+      {visibleRelays.map((relay) => (
         <FeedSwitcherItem
           key={relay}
           isActive={feedInfo.feedType === 'relay' && feedInfo.id === relay}
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index 968c95e..77b0628 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -151,6 +151,9 @@ export default {
     Muted: 'Muted',
     Unmute: 'Unmute',
     'Unmute user': 'Unmute user',
+    Block: 'Block',
+    Unblock: 'Unblock',
+    blocked: 'blocked',
     'Append n relays': 'Append {{n}} relays',
     Append: 'Append',
     'Select relays to append': 'Select relays to append',
diff --git a/src/lib/event-metadata.ts b/src/lib/event-metadata.ts
index b992258..8235ed5 100644
--- a/src/lib/event-metadata.ts
+++ b/src/lib/event-metadata.ts
@@ -9,18 +9,25 @@ import { generateBech32IdFromATag, generateBech32IdFromETag, tagNameEquals } fro
 import { isWebsocketUrl, normalizeHttpUrl, normalizeUrl } from './url'
 import { isTorBrowser } from './utils'
 
-export function getRelayListFromEvent(event?: Event | null) {
+export function getRelayListFromEvent(event?: Event | null, blockedRelays?: string[]) {
   if (!event) {
     return { write: BIG_RELAY_URLS, read: BIG_RELAY_URLS, originalRelays: [] }
   }
 
   const torBrowserDetected = isTorBrowser()
   const relayList = { write: [], read: [], originalRelays: [] } as TRelayList
+  
+  // Normalize blocked relays for comparison
+  const normalizedBlockedRelays = (blockedRelays || []).map(url => normalizeUrl(url) || url)
+  
   event.tags.filter(tagNameEquals('r')).forEach(([, url, type]) => {
     if (!url || !isWebsocketUrl(url)) return
 
     const normalizedUrl = normalizeUrl(url)
     if (!normalizedUrl) return
+    
+    // Filter out blocked relays
+    if (normalizedBlockedRelays.includes(normalizedUrl)) return
 
     const scope = type === 'read' ? 'read' : type === 'write' ? 'write' : 'both'
     relayList.originalRelays.push({ url: normalizedUrl, scope })
@@ -79,13 +86,18 @@ export function getProfileFromEvent(event: Event) {
   }
 }
 
-export function getRelaySetFromEvent(event: Event): TRelaySet {
+export function getRelaySetFromEvent(event: Event, blockedRelays?: string[]): TRelaySet {
   const id = getReplaceableEventIdentifier(event)
+  
+  // Normalize blocked relays for comparison
+  const normalizedBlockedRelays = (blockedRelays || []).map(url => normalizeUrl(url) || url)
+  
   const relayUrls = event.tags
     .filter(tagNameEquals('relay'))
     .map((tag) => tag[1])
     .filter((url) => url && isWebsocketUrl(url))
     .map((url) => normalizeUrl(url))
+    .filter((url) => !normalizedBlockedRelays.includes(url)) // Filter out blocked relays
 
   let name = event.tags.find(tagNameEquals('title'))?.[1]
   if (!name) {
diff --git a/src/providers/FavoriteRelaysProvider.tsx b/src/providers/FavoriteRelaysProvider.tsx
index 16e110c..cf82b94 100644
--- a/src/providers/FavoriteRelaysProvider.tsx
+++ b/src/providers/FavoriteRelaysProvider.tsx
@@ -92,6 +92,8 @@ export function FavoriteRelaysProvider({ children }: { children: React.ReactNode
         }
       })
 
+      // Keep all favorites in state - don't filter blocked relays here
+      // Blocked relays are filtered at the relay selection service level
       setFavoriteRelays(relays)
 
       if (!pubkey || !relaySetIds.length) {
@@ -164,9 +166,9 @@ export function FavoriteRelaysProvider({ children }: { children: React.ReactNode
 
   useEffect(() => {
     setRelaySets(
-      relaySetEvents.map((evt) => getRelaySetFromEvent(evt)).filter(Boolean) as TRelaySet[]
+      relaySetEvents.map((evt) => getRelaySetFromEvent(evt, blockedRelays)).filter(Boolean) as TRelaySet[]
     )
-  }, [relaySetEvents])
+  }, [relaySetEvents, blockedRelays])
 
   const addFavoriteRelays = async (relayUrls: string[]) => {
     const normalizedUrls = relayUrls
diff --git a/src/providers/FeedProvider.tsx b/src/providers/FeedProvider.tsx
index 0df5796..89038eb 100644
--- a/src/providers/FeedProvider.tsx
+++ b/src/providers/FeedProvider.tsx
@@ -31,7 +31,7 @@ export const useFeed = () => {
 
 export function FeedProvider({ children }: { children: React.ReactNode }) {
   const { pubkey, isInitialized } = useNostr()
-  const { relaySets, favoriteRelays } = useFavoriteRelays()
+  const { relaySets, favoriteRelays, blockedRelays } = useFavoriteRelays()
   const [relayUrls, setRelayUrls] = useState<string[]>([])
   const [isReady, setIsReady] = useState(false)
   const [feedInfo, setFeedInfo] = useState<TFeedInfo>({
@@ -46,9 +46,11 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
         return
       }
 
+      // Get first visible (non-blocked) favorite relay as default
+      const visibleRelays = favoriteRelays.filter(relay => !blockedRelays.includes(relay))
       let feedInfo: TFeedInfo = {
         feedType: 'relay',
-        id: favoriteRelays[0] ?? DEFAULT_FAVORITE_RELAYS[0]
+        id: visibleRelays[0] ?? DEFAULT_FAVORITE_RELAYS[0]
       }
       if (pubkey) {
         const storedFeedInfo = storage.getFeedInfo(pubkey)
@@ -62,6 +64,11 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
       }
 
       if (feedInfo.feedType === 'relay') {
+        // Check if the stored relay is blocked, if so use first visible relay instead
+        if (feedInfo.id && blockedRelays.includes(feedInfo.id)) {
+          console.log('Stored relay is blocked, using first visible relay instead')
+          feedInfo.id = visibleRelays[0] ?? DEFAULT_FAVORITE_RELAYS[0]
+        }
         return await switchFeed('relay', { relay: feedInfo.id })
       }
 
@@ -86,10 +93,12 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
   // Update relay URLs when favoriteRelays change and we're in all-favorites mode
   useEffect(() => {
     if (feedInfo.feedType === 'all-favorites') {
-      console.log('Updating relay URLs for all-favorites:', favoriteRelays)
-      setRelayUrls(favoriteRelays)
+      // Filter out blocked relays
+      const visibleRelays = favoriteRelays.filter(relay => !blockedRelays.includes(relay))
+      console.log('Updating relay URLs for all-favorites:', visibleRelays)
+      setRelayUrls(visibleRelays)
     }
-  }, [favoriteRelays, feedInfo.feedType])
+  }, [favoriteRelays, blockedRelays, feedInfo.feedType])
 
   const switchFeed = async (
     feedType: TFeedType,
@@ -106,6 +115,13 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
         setIsReady(true)
         return
       }
+      
+      // Don't allow selecting a blocked relay as feed
+      if (blockedRelays.includes(normalizedUrl)) {
+        console.warn('Cannot select blocked relay as feed:', normalizedUrl)
+        setIsReady(true)
+        return
+      }
 
       const newFeedInfo = { feedType, id: normalizedUrl }
       setFeedInfo(newFeedInfo)
@@ -132,7 +148,7 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
           relaySetId
         )
         if (storedRelaySetEvent) {
-          relaySet = getRelaySetFromEvent(storedRelaySetEvent)
+          relaySet = getRelaySetFromEvent(storedRelaySetEvent, blockedRelays)
         }
       }
       if (relaySet) {
@@ -161,11 +177,13 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
       return
     }
     if (feedType === 'all-favorites') {
-      console.log('Switching to all-favorites, favoriteRelays:', favoriteRelays)
+      // Filter out blocked relays
+      const visibleRelays = favoriteRelays.filter(relay => !blockedRelays.includes(relay))
+      console.log('Switching to all-favorites, favoriteRelays:', visibleRelays)
       const newFeedInfo = { feedType }
       setFeedInfo(newFeedInfo)
       feedInfoRef.current = newFeedInfo
-      setRelayUrls(favoriteRelays)
+      setRelayUrls(visibleRelays)
       storage.setFeedInfo(newFeedInfo, pubkey)
       setIsReady(true)
       return
diff --git a/src/providers/NostrProvider/index.tsx b/src/providers/NostrProvider/index.tsx
index ac4ee7b..0700875 100644
--- a/src/providers/NostrProvider/index.tsx
+++ b/src/providers/NostrProvider/index.tsx
@@ -232,6 +232,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         storedMuteListEvent,
         storedBookmarkListEvent,
         storedFavoriteRelaysEvent,
+        storedBlockedRelaysEvent,
         storedUserEmojiListEvent
       ] = await Promise.all([
         indexedDb.getReplaceableEvent(account.pubkey, kinds.RelayList),
@@ -240,10 +241,26 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         indexedDb.getReplaceableEvent(account.pubkey, kinds.Mutelist),
         indexedDb.getReplaceableEvent(account.pubkey, kinds.BookmarkList),
         indexedDb.getReplaceableEvent(account.pubkey, ExtendedKind.FAVORITE_RELAYS),
+        indexedDb.getReplaceableEvent(account.pubkey, ExtendedKind.BLOCKED_RELAYS),
         indexedDb.getReplaceableEvent(account.pubkey, kinds.UserEmojiList)
       ])
+      
+      // Extract blocked relays from event
+      const blockedRelays: string[] = []
+      if (storedBlockedRelaysEvent) {
+        storedBlockedRelaysEvent.tags.forEach(([tagName, tagValue]) => {
+          if (tagName === 'relay' && tagValue) {
+            const normalizedUrl = normalizeUrl(tagValue)
+            if (normalizedUrl && !blockedRelays.includes(normalizedUrl)) {
+              blockedRelays.push(normalizedUrl)
+            }
+          }
+        })
+        setBlockedRelaysEvent(storedBlockedRelaysEvent)
+      }
+      
       if (storedRelayListEvent) {
-        setRelayList(getRelayListFromEvent(storedRelayListEvent))
+        setRelayList(getRelayListFromEvent(storedRelayListEvent, blockedRelays))
       }
       if (storedProfileEvent) {
         setProfileEvent(storedProfileEvent)
@@ -270,7 +287,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         authors: [account.pubkey]
       })
       const relayListEvent = getLatestEvent(relayListEvents) ?? storedRelayListEvent
-      const relayList = getRelayListFromEvent(relayListEvent)
+      const relayList = getRelayListFromEvent(relayListEvent, blockedRelays)
       if (relayListEvent) {
         client.updateRelayListCache(relayListEvent)
         await indexedDb.putReplaceableEvent(relayListEvent)
@@ -294,6 +311,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
             kinds.BookmarkList,
             10015, // Interest list
             ExtendedKind.FAVORITE_RELAYS,
+            ExtendedKind.BLOCKED_RELAYS,
             ExtendedKind.BLOSSOM_SERVER_LIST,
             kinds.UserEmojiList
           ],
@@ -369,6 +387,23 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         const updatedBlockedRelaysEvent = await indexedDb.putReplaceableEvent(blockedRelaysEvent)
         if (updatedBlockedRelaysEvent.id === blockedRelaysEvent.id) {
           setBlockedRelaysEvent(updatedBlockedRelaysEvent)
+          
+          // Update blockedRelays array and re-filter relay list
+          const newBlockedRelays: string[] = []
+          updatedBlockedRelaysEvent.tags.forEach(([tagName, tagValue]) => {
+            if (tagName === 'relay' && tagValue) {
+              const normalizedUrl = normalizeUrl(tagValue)
+              if (normalizedUrl && !newBlockedRelays.includes(normalizedUrl)) {
+                newBlockedRelays.push(normalizedUrl)
+              }
+            }
+          })
+          
+          // Re-filter relay list with updated blocked relays
+          if (relayListEvent) {
+            const updatedRelayList = getRelayListFromEvent(relayListEvent, newBlockedRelays)
+            setRelayList(updatedRelayList)
+          }
         }
       }
       if (blossomServerListEvent) {
diff --git a/src/services/indexed-db.service.ts b/src/services/indexed-db.service.ts
index 72c6a3e..262da29 100644
--- a/src/services/indexed-db.service.ts
+++ b/src/services/indexed-db.service.ts
@@ -21,6 +21,7 @@ const StoreNames = {
   USER_EMOJI_LIST_EVENTS: 'userEmojiListEvents',
   EMOJI_SET_EVENTS: 'emojiSetEvents',
   FAVORITE_RELAYS: 'favoriteRelays',
+  BLOCKED_RELAYS_EVENTS: 'blockedRelaysEvents',
   RELAY_SETS: 'relaySets',
   FOLLOWING_FAVORITE_RELAYS: 'followingFavoriteRelays',
   RELAY_INFOS: 'relayInfos',
@@ -43,7 +44,7 @@ class IndexedDbService {
   init(): Promise<void> {
     if (!this.initPromise) {
       this.initPromise = new Promise((resolve, reject) => {
-        const request = window.indexedDB.open('jumble', 9)
+        const request = window.indexedDB.open('jumble', 10)
 
         request.onerror = (event) => {
           reject(event)
@@ -80,6 +81,9 @@ class IndexedDbService {
           if (!db.objectStoreNames.contains(StoreNames.FAVORITE_RELAYS)) {
             db.createObjectStore(StoreNames.FAVORITE_RELAYS, { keyPath: 'key' })
           }
+          if (!db.objectStoreNames.contains(StoreNames.BLOCKED_RELAYS_EVENTS)) {
+            db.createObjectStore(StoreNames.BLOCKED_RELAYS_EVENTS, { keyPath: 'key' })
+          }
           if (!db.objectStoreNames.contains(StoreNames.RELAY_SETS)) {
             db.createObjectStore(StoreNames.RELAY_SETS, { keyPath: 'key' })
           }
@@ -461,6 +465,8 @@ class IndexedDbService {
         return StoreNames.RELAY_SETS
       case ExtendedKind.FAVORITE_RELAYS:
         return StoreNames.FAVORITE_RELAYS
+      case ExtendedKind.BLOCKED_RELAYS:
+        return StoreNames.BLOCKED_RELAYS_EVENTS
       case kinds.BookmarkList:
         return StoreNames.BOOKMARK_LIST_EVENTS
       case kinds.UserEmojiList: