diff --git a/src/Avalonia.Themes.Fluent/Accents/BaseDark.xaml b/src/Avalonia.Themes.Fluent/Accents/BaseDark.xaml
index 7ce6c5a19f..b404661d1d 100644
--- a/src/Avalonia.Themes.Fluent/Accents/BaseDark.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/BaseDark.xaml
@@ -159,8 +159,8 @@
     <x:Double x:Key="AppBarThemeMinimalHeight">24</x:Double>
     <x:Double x:Key="AppBarThemeCompactHeight">40</x:Double>
     <x:Double x:Key="AppBarExpandButtonCircleDiameter">3</x:Double>
-    <x:Double x:Key="AutoSuggestListMaxHeight">374</x:Double>
-    <x:Double x:Key="AutoSuggestListBorderOpacity">0</x:Double>
+    <x:Double x:Key="AutoCompleteListMaxHeight">374</x:Double>
+    <x:Double x:Key="AutoCompleteListBorderOpacity">0</x:Double>
     <Thickness x:Key="CheckBoxBorderThemeThickness">2</Thickness>
     <Thickness x:Key="CheckBoxCheckedStrokeThickness">0</Thickness>
     <x:Double x:Key="ComboBoxArrowThemeFontSize">21</x:Double>
@@ -258,10 +258,10 @@
     <Thickness x:Key="AppBarTopBorderThemeThickness">0,0,0,0</Thickness>
     <Thickness x:Key="AppBarTopThemePadding">0,0,0,0</Thickness>
     <Thickness x:Key="AppBarExpandButtonCircleInnerPadding">3,0,3,0</Thickness>
-    <Thickness x:Key="AutoSuggestListBorderThemeThickness">1</Thickness>
-    <Thickness x:Key="AutoSuggestListMargin">0,2,0,2</Thickness>
-    <Thickness x:Key="AutoSuggestListPadding">-1,0,-1,0</Thickness>
-    <Thickness x:Key="AutoSuggestListViewItemMargin">12,11,0,13</Thickness>
+    <Thickness x:Key="AutoCompleteListBorderThemeThickness">1</Thickness>
+    <Thickness x:Key="AutoCompleteListMargin">0,2,0,2</Thickness>
+    <Thickness x:Key="AutoCompleteListPadding">-1,0,-1,0</Thickness>
+    <Thickness x:Key="AutoCompleteListViewItemMargin">12,11,0,13</Thickness>
     <Thickness x:Key="ButtonBorderThemeThickness">2</Thickness>
     <Thickness x:Key="CalendarDatePickerBorderThemeThickness">2</Thickness>
     <Thickness x:Key="ComboBoxBorderThemeThickness">2</Thickness>
diff --git a/src/Avalonia.Themes.Fluent/Accents/BaseLight.xaml b/src/Avalonia.Themes.Fluent/Accents/BaseLight.xaml
index 026edca4f9..b370ec7dbf 100644
--- a/src/Avalonia.Themes.Fluent/Accents/BaseLight.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/BaseLight.xaml
@@ -158,8 +158,8 @@
     <x:Double x:Key="AppBarThemeMinimalHeight">24</x:Double>
     <x:Double x:Key="AppBarThemeCompactHeight">40</x:Double>
     <x:Double x:Key="AppBarExpandButtonCircleDiameter">3</x:Double>
-    <x:Double x:Key="AutoSuggestListMaxHeight">374</x:Double>
-    <x:Double x:Key="AutoSuggestListBorderOpacity">0</x:Double>
+    <x:Double x:Key="AutoCompleteListMaxHeight">374</x:Double>
+    <x:Double x:Key="AutoCompleteListBorderOpacity">0</x:Double>
     <Thickness x:Key="CheckBoxBorderThemeThickness">2</Thickness>
     <Thickness x:Key="CheckBoxCheckedStrokeThickness">0</Thickness>
     <x:Double x:Key="ComboBoxArrowThemeFontSize">21</x:Double>
@@ -257,10 +257,10 @@
     <Thickness x:Key="AppBarTopBorderThemeThickness">0,0,0,0</Thickness>
     <Thickness x:Key="AppBarTopThemePadding">0,0,0,0</Thickness>
     <Thickness x:Key="AppBarExpandButtonCircleInnerPadding">3,0,3,0</Thickness>
-    <Thickness x:Key="AutoSuggestListBorderThemeThickness">1</Thickness>
-    <Thickness x:Key="AutoSuggestListMargin">0,2,0,2</Thickness>
-    <Thickness x:Key="AutoSuggestListPadding">-1,0,-1,0</Thickness>
-    <Thickness x:Key="AutoSuggestListViewItemMargin">12,11,0,13</Thickness>
+    <Thickness x:Key="AutoCompleteListBorderThemeThickness">1</Thickness>
+    <Thickness x:Key="AutoCompleteListMargin">0,2,0,2</Thickness>
+    <Thickness x:Key="AutoCompleteListPadding">-1,0,-1,0</Thickness>
+    <Thickness x:Key="AutoCompleteListViewItemMargin">12,11,0,13</Thickness>
     <Thickness x:Key="ButtonBorderThemeThickness">2</Thickness>
     <Thickness x:Key="CalendarDatePickerBorderThemeThickness">2</Thickness>
     <Thickness x:Key="ComboBoxBorderThemeThickness">2</Thickness>
diff --git a/src/Avalonia.Themes.Fluent/Accents/FluentBaseDark.xaml b/src/Avalonia.Themes.Fluent/Accents/FluentBaseDark.xaml
index 9fe9f5389e..57216c008a 100644
--- a/src/Avalonia.Themes.Fluent/Accents/FluentBaseDark.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/FluentBaseDark.xaml
@@ -135,7 +135,13 @@
     <StaticResource x:Key="TextControlButtonForegroundPressed" ResourceKey="SystemControlHighlightAltChromeWhiteBrush" />
     <StaticResource x:Key="ContentLinkForegroundColor" ResourceKey="SystemControlHyperlinkTextBrush" />
     <StaticResource x:Key="ContentLinkBackgroundColor" ResourceKey="SystemControlPageBackgroundChromeLowBrush" />
-    
+
+    <!-- Resources for AutoCompleteBox.xaml -->
+    <StaticResource x:Key="AutoCompleteBoxLightDismissOverlayBackground" ResourceKey="SystemControlPageBackgroundMediumAltMediumBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBackground" ResourceKey="SystemControlBackgroundChromeMediumLowBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBorderBrush" ResourceKey="SystemControlForegroundChromeHighBrush" />
+    <x:Double x:Key="AutoCompleteBoxIconFontSize">12</x:Double>
+
     <!-- BaseResources for CheckBox.xaml -->
     <StaticResource x:Key="CheckBoxForegroundUnchecked" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <StaticResource x:Key="CheckBoxForegroundUncheckedPointerOver" ResourceKey="SystemControlForegroundBaseHighBrush" />
diff --git a/src/Avalonia.Themes.Fluent/Accents/FluentBaseLight.xaml b/src/Avalonia.Themes.Fluent/Accents/FluentBaseLight.xaml
index 87cc0d38a0..bf874ce3f1 100644
--- a/src/Avalonia.Themes.Fluent/Accents/FluentBaseLight.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/FluentBaseLight.xaml
@@ -135,7 +135,13 @@
     <StaticResource x:Key="TextControlButtonForegroundPressed" ResourceKey="SystemControlHighlightAltChromeWhiteBrush" />
     <StaticResource x:Key="ContentLinkForegroundColor" ResourceKey="SystemControlHyperlinkTextBrush" />
     <StaticResource x:Key="ContentLinkBackgroundColor" ResourceKey="SystemControlPageBackgroundChromeLowBrush" />
-    
+
+    <!-- Resources for AutoCompleteBox.xaml -->
+    <StaticResource x:Key="AutoCompleteBoxLightDismissOverlayBackground" ResourceKey="SystemControlPageBackgroundMediumAltMediumBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBackground" ResourceKey="SystemControlBackgroundChromeMediumLowBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBorderBrush" ResourceKey="SystemControlForegroundChromeHighBrush" />
+    <x:Double x:Key="AutoCompleteBoxIconFontSize">12</x:Double>
+
     <!-- BaseResources for CheckBox.xaml -->
     <StaticResource x:Key="CheckBoxForegroundUnchecked" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <StaticResource x:Key="CheckBoxForegroundUncheckedPointerOver" ResourceKey="SystemControlForegroundBaseHighBrush" />
diff --git a/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesDark.xaml b/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesDark.xaml
index f09569e613..d99774b788 100644
--- a/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesDark.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesDark.xaml
@@ -82,6 +82,12 @@
     <StaticResource x:Key="TextControlForegroundFocused" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <StaticResource x:Key="TextControlPlaceholderForegroundFocused" ResourceKey="SystemControlForegroundBaseMediumLowBrush" />
 
+    <!-- Resources for AutoCompleteBox.xaml -->
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBackground" ResourceKey="SystemControlBackgroundChromeMediumLowBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBorderBrush" ResourceKey="SystemControlForegroundChromeHighBrush" />
+    <StaticResource x:Key="AutoCompleteBoxLightDismissOverlayBackground" ResourceKey="SystemControlPageBackgroundMediumAltMediumBrush" />
+    <x:Double x:Key="AutoCompleteBoxIconFontSize">12</x:Double>
+
     <!-- Resources for Checkbox.xaml -->
     <Thickness x:Key="CheckBoxBorderThemeThickness">1</Thickness>
     <Thickness x:Key="CheckBoxCheckedStrokeThickness">0</Thickness>
diff --git a/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesLight.xaml b/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesLight.xaml
index 97497495be..79dcbae50f 100644
--- a/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesLight.xaml
+++ b/src/Avalonia.Themes.Fluent/Accents/FluentControlResourcesLight.xaml
@@ -82,6 +82,12 @@
     <StaticResource x:Key="TextControlForegroundFocused" ResourceKey="SystemControlForegroundBaseHighBrush" />
     <StaticResource x:Key="TextControlPlaceholderForegroundFocused" ResourceKey="SystemControlForegroundBaseMediumLowBrush" />
 
+    <!-- Resources for AutoCompleteBox.xaml -->
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBackground" ResourceKey="SystemControlBackgroundChromeMediumLowBrush" />
+    <StaticResource x:Key="AutoCompleteBoxSuggestionsListBorderBrush" ResourceKey="SystemControlForegroundChromeHighBrush" />
+    <StaticResource x:Key="AutoCompleteBoxLightDismissOverlayBackground" ResourceKey="SystemControlPageBackgroundMediumAltMediumBrush" />
+    <x:Double x:Key="AutoCompleteBoxIconFontSize">12</x:Double>
+
     <!-- Resources for CheckBox.xaml -->
     <x:Double x:Key="CheckBoxBorderThemeThickness">1</x:Double>
     <x:Double x:Key="CheckBoxCheckedStrokeThickness">0</x:Double>