diff --git a/src/ClaudeDo.App/Assets/ClaudeTask.ico b/src/ClaudeDo.App/Assets/ClaudeTask.ico
new file mode 100644
index 0000000..6e429ce
Binary files /dev/null and b/src/ClaudeDo.App/Assets/ClaudeTask.ico differ
diff --git a/src/ClaudeDo.App/ClaudeDo.App.csproj b/src/ClaudeDo.App/ClaudeDo.App.csproj
index cf1d4b6..cd66b50 100644
--- a/src/ClaudeDo.App/ClaudeDo.App.csproj
+++ b/src/ClaudeDo.App/ClaudeDo.App.csproj
@@ -4,6 +4,7 @@
     <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ApplicationManifest>app.manifest</ApplicationManifest>
+    <ApplicationIcon>Assets\ClaudeTask.ico</ApplicationIcon>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
   </PropertyGroup>
 
diff --git a/src/ClaudeDo.Installer/ClaudeDo.Installer.csproj b/src/ClaudeDo.Installer/ClaudeDo.Installer.csproj
index 4b968d5..139ba01 100644
--- a/src/ClaudeDo.Installer/ClaudeDo.Installer.csproj
+++ b/src/ClaudeDo.Installer/ClaudeDo.Installer.csproj
@@ -8,8 +8,14 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <!-- Allow Linux Gitea runners to publish this WPF project for win-x64; no-op on Windows. -->
     <EnableWindowsTargeting>true</EnableWindowsTargeting>
+    <ApplicationIcon>ClaudeTaskSetup.ico</ApplicationIcon>
   </PropertyGroup>
 
+  <ItemGroup>
+    <!-- Embed icon so it is available via pack URI in WPF windows. -->
+    <Resource Include="ClaudeTaskSetup.ico" />
+  </ItemGroup>
+
   <!-- Debug: asInvoker so Rider/VS can debug without elevation -->
   <PropertyGroup Condition="'$(Configuration)' == 'Debug'">
     <ApplicationManifest>app.debug.manifest</ApplicationManifest>
diff --git a/src/ClaudeDo.Installer/ClaudeTaskSetup.ico b/src/ClaudeDo.Installer/ClaudeTaskSetup.ico
new file mode 100644
index 0000000..87fa5fa
Binary files /dev/null and b/src/ClaudeDo.Installer/ClaudeTaskSetup.ico differ
diff --git a/src/ClaudeDo.Installer/Views/SettingsWindow.xaml b/src/ClaudeDo.Installer/Views/SettingsWindow.xaml
index 25d5e15..11a2596 100644
--- a/src/ClaudeDo.Installer/Views/SettingsWindow.xaml
+++ b/src/ClaudeDo.Installer/Views/SettingsWindow.xaml
@@ -3,6 +3,7 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:views="clr-namespace:ClaudeDo.Installer.Views"
         Title="ClaudeDo Settings"
+        Icon="/ClaudeTaskSetup.ico"
         Width="720" Height="520"
         MinWidth="620" MinHeight="460"
         WindowStartupLocation="CenterScreen"
diff --git a/src/ClaudeDo.Installer/Views/WizardWindow.xaml b/src/ClaudeDo.Installer/Views/WizardWindow.xaml
index be7573b..2856d43 100644
--- a/src/ClaudeDo.Installer/Views/WizardWindow.xaml
+++ b/src/ClaudeDo.Installer/Views/WizardWindow.xaml
@@ -3,6 +3,7 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:views="clr-namespace:ClaudeDo.Installer.Views"
         Title="ClaudeDo Installer"
+        Icon="/ClaudeTaskSetup.ico"
         Width="720" Height="520"
         MinWidth="620" MinHeight="460"
         WindowStartupLocation="CenterScreen"
diff --git a/src/ClaudeDo.Ui/Views/MainWindow.axaml b/src/ClaudeDo.Ui/Views/MainWindow.axaml
index 2d80721..51edb05 100644
--- a/src/ClaudeDo.Ui/Views/MainWindow.axaml
+++ b/src/ClaudeDo.Ui/Views/MainWindow.axaml
@@ -8,6 +8,7 @@
         x:Class="ClaudeDo.Ui.Views.MainWindow"
         x:DataType="vm:MainWindowViewModel"
         Title="ClaudeDo"
+        Icon="avares://ClaudeDo.App/Assets/ClaudeTask.ico"
         MinWidth="800" MinHeight="500"
         KeyDown="OnGlobalKeyDown">