diff --git a/Resources/Localizable.xcstrings b/Resources/Localizable.xcstrings
index 14de005d463f..78603272dfc1 100644
--- a/Resources/Localizable.xcstrings
+++ b/Resources/Localizable.xcstrings
@@ -29825,6 +29825,40 @@
         }
       }
     },
+    "contextMenu.muteNotifications": {
+      "extractionState": "manual",
+      "localizations": {
+        "en": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "Mute Notifications"
+          }
+        },
+        "ja": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "通知をミュート"
+          }
+        }
+      }
+    },
+    "contextMenu.unmuteNotifications": {
+      "extractionState": "manual",
+      "localizations": {
+        "en": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "Unmute Notifications"
+          }
+        },
+        "ja": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "通知のミュートを解除"
+          }
+        }
+      }
+    },
     "contextMenu.workspaceColor": {
       "extractionState": "manual",
       "localizations": {
diff --git a/Sources/ContentView.swift b/Sources/ContentView.swift
index 9065d5971758..1f28d5321202 100644
--- a/Sources/ContentView.swift
+++ b/Sources/ContentView.swift
@@ -10973,7 +10973,8 @@ private struct TabItemView: View, Equatable {
         lhs.showsModifierShortcutHints == rhs.showsModifierShortcutHints &&
         lhs.remoteContextMenuWorkspaceIds == rhs.remoteContextMenuWorkspaceIds &&
         lhs.allRemoteContextMenuTargetsConnecting == rhs.allRemoteContextMenuTargetsConnecting &&
-        lhs.allRemoteContextMenuTargetsDisconnected == rhs.allRemoteContextMenuTargetsDisconnected
+        lhs.allRemoteContextMenuTargetsDisconnected == rhs.allRemoteContextMenuTargetsDisconnected &&
+        lhs.tab.isMuted == rhs.tab.isMuted
     }
 
     // Use plain references instead of @EnvironmentObject to avoid subscribing
@@ -11283,6 +11284,13 @@ private struct TabItemView: View, Equatable {
                         .safeHelp(protectedWorkspaceTooltip)
                 }
 
+                if tab.isMuted {
+                    Image(systemName: "bell.slash.fill")
+                        .font(.system(size: 9, weight: .semibold))
+                        .foregroundColor(activeSecondaryColor(0.8))
+                        .safeHelp(String(localized: "sidebar.mutedWorkspace.tooltip", defaultValue: "Notifications muted"))
+                }
+
                 Text(tab.title)
                     .font(.system(size: 12.5, weight: titleFontWeight))
                     .foregroundColor(activePrimaryTextColor)
@@ -11634,6 +11642,10 @@ private struct TabItemView: View, Equatable {
                 multi: String(localized: "contextMenu.unpinWorkspaces", defaultValue: "Unpin Workspaces"),
                 single: String(localized: "contextMenu.unpinWorkspace", defaultValue: "Unpin Workspace"),
                 isMulti: isMulti)
+        let shouldMute = !tab.isMuted
+        let muteLabel = shouldMute
+            ? String(localized: "contextMenu.muteNotifications", defaultValue: "Mute Notifications")
+            : String(localized: "contextMenu.unmuteNotifications", defaultValue: "Unmute Notifications")
         let closeLabel = contextMenuLabel(
             multi: String(localized: "contextMenu.closeWorkspaces", defaultValue: "Close Workspaces"),
             single: String(localized: "contextMenu.closeWorkspace", defaultValue: "Close Workspace"),
@@ -11657,6 +11669,14 @@ private struct TabItemView: View, Equatable {
             syncSelectionAfterMutation()
         }
 
+        Button(muteLabel) {
+            for id in targetIds {
+                if let workspace = tabManager.tabs.first(where: { $0.id == id }) {
+                    workspace.isMuted = shouldMute
+                }
+            }
+        }
+
         if let key = renameWorkspaceShortcut.keyEquivalent {
             Button(String(localized: "contextMenu.renameWorkspace", defaultValue: "Rename Workspace…")) {
                 promptRename()
diff --git a/Sources/SessionPersistence.swift b/Sources/SessionPersistence.swift
index 188833d40298..a08bb4aad1a3 100644
--- a/Sources/SessionPersistence.swift
+++ b/Sources/SessionPersistence.swift
@@ -332,6 +332,7 @@ struct SessionWorkspaceSnapshot: Codable, Sendable {
     var customTitle: String?
     var customColor: String?
     var isPinned: Bool
+    var isMuted: Bool?
     var currentDirectory: String
     var focusedPanelId: UUID?
     var layout: SessionWorkspaceLayoutSnapshot
diff --git a/Sources/TerminalNotificationStore.swift b/Sources/TerminalNotificationStore.swift
index 19a695bc52cf..69e63c21ecab 100644
--- a/Sources/TerminalNotificationStore.swift
+++ b/Sources/TerminalNotificationStore.swift
@@ -891,6 +891,12 @@ final class TerminalNotificationStore: ObservableObject {
     }
 
     func addNotification(tabId: UUID, surfaceId: UUID?, title: String, subtitle: String, body: String) {
+        // Skip all notification activity when the workspace has been muted by the user.
+        // Use tabManagerFor(tabId:) to search across all windows, not just the key window's tabManager.
+        if AppDelegate.shared?.tabManagerFor(tabId: tabId)?.tabs.first(where: { $0.id == tabId })?.isMuted == true {
+            return
+        }
+
         var updated = notifications
         var idsToClear: [String] = []
         updated.removeAll { existing in
@@ -904,8 +910,9 @@ final class TerminalNotificationStore: ObservableObject {
             focusedReadIndicatorByTabId.removeValue(forKey: tabId)
         }
 
-        let isActiveTab = AppDelegate.shared?.tabManager?.selectedTabId == tabId
-        let focusedSurfaceId = AppDelegate.shared?.tabManager?.focusedSurfaceId(for: tabId)
+        let tabManager = AppDelegate.shared?.tabManagerFor(tabId: tabId)
+        let isActiveTab = tabManager?.selectedTabId == tabId
+        let focusedSurfaceId = tabManager?.focusedSurfaceId(for: tabId)
         let isFocusedSurface = surfaceId == nil || focusedSurfaceId == surfaceId
         let isFocusedPanel = isActiveTab && isFocusedSurface
         let isAppFocused = AppFocusState.isAppFocused()
@@ -915,7 +922,7 @@ final class TerminalNotificationStore: ObservableObject {
         }
 
         if WorkspaceAutoReorderSettings.isEnabled() {
-            AppDelegate.shared?.tabManager?.moveTabToTopForNotification(tabId)
+            tabManager?.moveTabToTopForNotification(tabId)
         }
 
         let notification = TerminalNotification(
diff --git a/Sources/Workspace.swift b/Sources/Workspace.swift
index 8a231de4d280..90e008619872 100644
--- a/Sources/Workspace.swift
+++ b/Sources/Workspace.swift
@@ -241,6 +241,7 @@ extension Workspace {
             customTitle: customTitle,
             customColor: customColor,
             isPinned: isPinned,
+            isMuted: isMuted,
             currentDirectory: currentDirectory,
             focusedPanelId: focusedPanelId,
             layout: layout,
@@ -280,6 +281,7 @@ extension Workspace {
         setCustomTitle(snapshot.customTitle)
         setCustomColor(snapshot.customColor)
         isPinned = snapshot.isPinned
+        isMuted = snapshot.isMuted ?? false
 
         // Status entries and agent PIDs are ephemeral runtime state tied to running
         // processes (e.g. claude_code "Running"). Don't restore them across app
@@ -5359,6 +5361,7 @@ final class Workspace: Identifiable, ObservableObject {
     @Published var title: String
     @Published var customTitle: String?
     @Published var isPinned: Bool = false
+    @Published var isMuted: Bool = false
     @Published var customColor: String?  // hex string, e.g. "#C0392B"
     @Published var currentDirectory: String
     private(set) var preferredBrowserProfileID: UUID?