diff --git a/superset-frontend/src/dashboard/components/nativeFilters/FilterBar/index.tsx b/superset-frontend/src/dashboard/components/nativeFilters/FilterBar/index.tsx
index 53b27095a88..121090a89e3 100644
--- a/superset-frontend/src/dashboard/components/nativeFilters/FilterBar/index.tsx
+++ b/superset-frontend/src/dashboard/components/nativeFilters/FilterBar/index.tsx
@@ -396,7 +396,9 @@ const FilterBar: FC<FiltersBarProps> = ({
 
   const handleClearAll = useCallback(() => {
     const newClearAllTriggers = { ...clearAllTriggers };
-    filtersInScope.filter(isNativeFilter).forEach(filter => {
+    // Clear all native filters, not just those in scope
+    // This ensures dependent filters are cleared even if parent was cleared first
+    nativeFilterValues.forEach(filter => {
       const { id } = filter;
       if (dataMaskSelected[id]) {
         setDataMaskSelected(draft => {
@@ -448,10 +450,11 @@ const FilterBar: FC<FiltersBarProps> = ({
     setClearAllTriggers(newClearAllTriggers);
   }, [
     dataMaskSelected,
-    dataMaskApplied,
-    filtersInScope,
-    chartCustomizationItems,
+    nativeFilterValues,
+    setDataMaskSelected,
     clearAllTriggers,
+    dataMaskApplied,
+    chartCustomizationItems,
     dispatch,
   ]);
 
diff --git a/superset-frontend/src/filters/components/Select/SelectFilterPlugin.tsx b/superset-frontend/src/filters/components/Select/SelectFilterPlugin.tsx
index 4e9a2790392..494ae49d8f0 100644
--- a/superset-frontend/src/filters/components/Select/SelectFilterPlugin.tsx
+++ b/superset-frontend/src/filters/components/Select/SelectFilterPlugin.tsx
@@ -349,17 +349,21 @@ export default function PluginFilterSelect(props: PluginFilterSelectProps) {
     }
 
     // Handle the default to first Value case
-    if (defaultToFirstItem) {
-      // Set to first item if defaultToFirstItem is true
-      const firstItem: SelectValue = data[0]
-        ? (groupby.map(col => data[0][col]) as string[])
-        : null;
-      if (firstItem?.[0] !== undefined) {
-        updateDataMask(firstItem);
+    // Skip default values when clearAllTrigger is active to prevent
+    // defaults from being applied during Clear All operation
+    if (!clearAllTrigger) {
+      if (defaultToFirstItem) {
+        // Set to first item if defaultToFirstItem is true
+        const firstItem: SelectValue = data[0]
+          ? (groupby.map(col => data[0][col]) as string[])
+          : null;
+        if (firstItem?.[0] !== undefined) {
+          updateDataMask(firstItem);
+        }
+      } else if (formData?.defaultValue) {
+        // Handle defalut value case
+        updateDataMask(formData.defaultValue);
       }
-    } else if (formData?.defaultValue) {
-      // Handle defalut value case
-      updateDataMask(formData.defaultValue);
     }
   }, [
     isDisabled,
@@ -370,6 +374,7 @@ export default function PluginFilterSelect(props: PluginFilterSelectProps) {
     groupby,
     col,
     inverseSelection,
+    clearAllTrigger,
   ]);
 
   useEffect(() => {
@@ -406,7 +411,9 @@ export default function PluginFilterSelect(props: PluginFilterSelectProps) {
       ? (groupby.map(col => data[0][col]) as string[])
       : null;
 
+    // Skip default value update when clearAllTrigger is active
     if (
+      !clearAllTrigger &&
       defaultToFirstItem &&
       Object.keys(formData?.extraFormData || {}).length &&
       filterState.value !== undefined &&
@@ -423,6 +430,7 @@ export default function PluginFilterSelect(props: PluginFilterSelectProps) {
     formData,
     data,
     JSON.stringify(filterState.value),
+    clearAllTrigger,
   ]);
 
   useEffect(() => {