diff --git a/Libraries/Lists/FlatList.js b/Libraries/Lists/FlatList.js
index 46f99c7603efa4..fa0bd25008b7e6 100644
--- a/Libraries/Lists/FlatList.js
+++ b/Libraries/Lists/FlatList.js
@@ -433,6 +433,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     }
   }
 
+  // $FlowFixMe[missing-local-annot]
   componentDidUpdate(prevProps: Props<ItemT>) {
     invariant(
       prevProps.numColumns === this.props.numColumns,
@@ -463,6 +464,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     this._listRef = ref;
   };
 
+  // $FlowFixMe[missing-local-annot]
   _checkProps(props: Props<ItemT>) {
     const {
       // $FlowFixMe[prop-missing] this prop doesn't exist, is only used for an invariant
@@ -494,6 +496,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     );
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getItem = (data: Array<ItemT>, index: number) => {
     const numColumns = numColumnsOrDefault(this.props.numColumns);
     if (numColumns > 1) {
@@ -520,6 +523,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     }
   };
 
+  // $FlowFixMe[missing-local-annot]
   _keyExtractor = (items: ItemT | Array<ItemT>, index: number) => {
     const numColumns = numColumnsOrDefault(this.props.numColumns);
     const keyExtractor = this.props.keyExtractor ?? defaultKeyExtractor;
@@ -561,6 +565,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
       changed: Array<ViewToken>,
       ...
     }) => void,
+    // $FlowFixMe[missing-local-annot]
   ) {
     return (info: {
       viewableItems: Array<ViewToken>,
@@ -590,6 +595,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     columnWrapperStyle: ?ViewStyleProp,
     numColumns: ?number,
     extraData: ?any,
+    // $FlowFixMe[missing-local-annot]
   ) => {
     const cols = numColumnsOrDefault(numColumns);
 
@@ -651,6 +657,7 @@ class FlatList<ItemT> extends React.PureComponent<Props<ItemT>, void> {
     };
   };
 
+  // $FlowFixMe[missing-local-annot]
   _memoizedRenderer = memoizeOne(this._renderer);
 
   render(): React.Node {
diff --git a/Libraries/Lists/VirtualizedList.js b/Libraries/Lists/VirtualizedList.js
index 07f705fdd28c7f..9ef2fb2b9d2cf5 100644
--- a/Libraries/Lists/VirtualizedList.js
+++ b/Libraries/Lists/VirtualizedList.js
@@ -182,7 +182,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     viewOffset?: number,
     viewPosition?: number,
     ...
-  }) {
+  }): $FlowFixMe {
     const {
       data,
       horizontal,
@@ -369,6 +369,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     };
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getScrollMetrics = () => {
     return this._scrollMetrics;
   };
@@ -377,6 +378,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     return this._hasMore;
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getOutermostParentListRef = () => {
     if (this._isNestedWithSameOrientation()) {
       return this.context.getOutermostParentListRef();
@@ -631,6 +633,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
   _getSpacerKey = (isVertical: boolean): string =>
     isVertical ? 'height' : 'width';
 
+  // $FlowFixMe[missing-local-annot]
   _keyExtractor(item: Item, index: number) {
     if (this.props.keyExtractor != null) {
       return this.props.keyExtractor(item, index);
@@ -985,6 +988,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
   > = new Map();
   _offsetFromParentVirtualizedList: number = 0;
   _prevParentOffset: number = 0;
+  // $FlowFixMe[missing-local-annot]
   _scrollMetrics = {
     contentLength: 0,
     dOffset: 0,
@@ -1016,6 +1020,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     );
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getCellsInItemCount = (props: Props) => {
     const {getCellsInItemCount, data} = props;
     if (getCellsInItemCount) {
@@ -1231,6 +1236,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     this._headerLength = this._selectLength(e.nativeEvent.layout);
   };
 
+  // $FlowFixMe[missing-local-annot]
   _renderDebugOverlay() {
     const normalize =
       this._scrollMetrics.visibleLength /
@@ -1376,7 +1382,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     visibleLength: number,
     offset: number,
     ...
-  }) => {
+  }): $FlowFixMe => {
     // Offset of the top of the nested list relative to the top of its parent's viewport
     const offset = metrics.offset - this._offsetFromParentVirtualizedList;
     // Child's visible length is the same as its parent's
@@ -1653,6 +1659,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     });
   };
 
+  // $FlowFixMe[missing-local-annot]
   _createViewToken = (index: number, isViewable: boolean) => {
     const {data, getItem} = this.props;
     const item = getItem(data, index);
@@ -1770,6 +1777,7 @@ class CellRenderer extends React.Component<
   CellRendererProps,
   CellRendererState,
 > {
+  // $FlowFixMe[missing-local-annot]
   state = {
     separatorProps: {
       highlighted: false,
@@ -1791,6 +1799,7 @@ class CellRenderer extends React.Component<
 
   // TODO: consider factoring separator stuff out of VirtualizedList into FlatList since it's not
   // reused by SectionList and we can keep VirtualizedList simpler.
+  // $FlowFixMe[missing-local-annot]
   _separators = {
     highlight: () => {
       const {cellKey, prevCellKey} = this.props;
@@ -1837,6 +1846,7 @@ class CellRenderer extends React.Component<
     ListItemComponent: any,
     item: any,
     index: any,
+    // $FlowFixMe[missing-local-annot]
   ) {
     if (renderItem && ListItemComponent) {
       console.warn(
@@ -1882,6 +1892,7 @@ class CellRenderer extends React.Component<
     );
   }
 
+  // $FlowFixMe[missing-local-annot]
   render() {
     const {
       CellRendererComponent,
diff --git a/Libraries/Lists/VirtualizedList_EXPERIMENTAL.js b/Libraries/Lists/VirtualizedList_EXPERIMENTAL.js
index cb79424dfbecdb..f3c834e09e36f4 100644
--- a/Libraries/Lists/VirtualizedList_EXPERIMENTAL.js
+++ b/Libraries/Lists/VirtualizedList_EXPERIMENTAL.js
@@ -202,7 +202,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     viewOffset?: number,
     viewPosition?: number,
     ...
-  }) {
+  }): $FlowFixMe {
     const {
       data,
       horizontal,
@@ -389,6 +389,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     };
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getScrollMetrics = () => {
     return this._scrollMetrics;
   };
@@ -397,6 +398,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     return this._hasMore;
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getOutermostParentListRef = () => {
     if (this._isNestedWithSameOrientation()) {
       return this.context.getOutermostParentListRef();
@@ -849,6 +851,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
       keyExtractor?: ?(item: Item, index: number) => string,
       ...
     },
+    // $FlowFixMe[missing-local-annot]
   ) {
     if (props.keyExtractor != null) {
       return props.keyExtractor(item, index);
@@ -1180,6 +1183,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
   > = new Map();
   _offsetFromParentVirtualizedList: number = 0;
   _prevParentOffset: number = 0;
+  // $FlowFixMe[missing-local-annot]
   _scrollMetrics = {
     contentLength: 0,
     dOffset: 0,
@@ -1211,6 +1215,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     );
   }
 
+  // $FlowFixMe[missing-local-annot]
   _getCellsInItemCount = (props: Props) => {
     const {getCellsInItemCount, data} = props;
     if (getCellsInItemCount) {
@@ -1442,6 +1447,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     this._headerLength = this._selectLength(e.nativeEvent.layout);
   };
 
+  // $FlowFixMe[missing-local-annot]
   _renderDebugOverlay() {
     const normalize =
       this._scrollMetrics.visibleLength /
@@ -1593,7 +1599,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     visibleLength: number,
     offset: number,
     ...
-  }) => {
+  }): $FlowFixMe => {
     // Offset of the top of the nested list relative to the top of its parent's viewport
     const offset = metrics.offset - this._offsetFromParentVirtualizedList;
     // Child's visible length is the same as its parent's
@@ -1797,6 +1803,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     index: number,
     isViewable: boolean,
     props: FrameMetricProps,
+    // $FlowFixMe[missing-local-annot]
   ) => {
     const {data, getItem} = props;
     const item = getItem(data, index);
@@ -1986,6 +1993,7 @@ class CellRenderer extends React.Component<
   CellRendererProps,
   CellRendererState,
 > {
+  // $FlowFixMe[missing-local-annot]
   state = {
     separatorProps: {
       highlighted: false,
@@ -2007,6 +2015,7 @@ class CellRenderer extends React.Component<
 
   // TODO: consider factoring separator stuff out of VirtualizedList into FlatList since it's not
   // reused by SectionList and we can keep VirtualizedList simpler.
+  // $FlowFixMe[missing-local-annot]
   _separators = {
     highlight: () => {
       const {cellKey, prevCellKey} = this.props;
@@ -2053,6 +2062,7 @@ class CellRenderer extends React.Component<
     ListItemComponent: any,
     item: any,
     index: any,
+    // $FlowFixMe[missing-local-annot]
   ) {
     if (renderItem && ListItemComponent) {
       console.warn(
@@ -2098,6 +2108,7 @@ class CellRenderer extends React.Component<
     );
   }
 
+  // $FlowFixMe[missing-local-annot]
   render() {
     const {
       CellRendererComponent,
diff --git a/Libraries/Lists/VirtualizedSectionList.js b/Libraries/Lists/VirtualizedSectionList.js
index ffeb45450f4262..f441a85c25e06e 100644
--- a/Libraries/Lists/VirtualizedSectionList.js
+++ b/Libraries/Lists/VirtualizedSectionList.js
@@ -237,6 +237,7 @@ class VirtualizedSectionList<
     return null;
   }
 
+  // $FlowFixMe[missing-local-annot]
   _keyExtractor = (item: Item, index: number) => {
     const info = this._subExtractor(index);
     return (info && info.key) || String(index);
@@ -340,7 +341,7 @@ class VirtualizedSectionList<
   };
 
   _renderItem =
-    (listItemCount: number) =>
+    (listItemCount: number): $FlowFixMe =>
     // eslint-disable-next-line react/no-unstable-nested-components
     ({
       item,
diff --git a/packages/rn-tester/js/examples/FlatList/FlatList-basic.js b/packages/rn-tester/js/examples/FlatList/FlatList-basic.js
index 704be0ae1c27a1..32a613892b94e7 100644
--- a/packages/rn-tester/js/examples/FlatList/FlatList-basic.js
+++ b/packages/rn-tester/js/examples/FlatList/FlatList-basic.js
@@ -97,11 +97,14 @@ class FlatListExample extends React.PureComponent<Props, State> {
     this._listRef.scrollToIndex({viewPosition: 0.5, index: Number(text)});
   };
 
+  // $FlowFixMe[missing-local-annot]
   _scrollPos = new Animated.Value(0);
+  // $FlowFixMe[missing-local-annot]
   _scrollSinkX = Animated.event(
     [{nativeEvent: {contentOffset: {x: this._scrollPos}}}],
     {useNativeDriver: true},
   );
+  // $FlowFixMe[missing-local-annot]
   _scrollSinkY = Animated.event(
     [{nativeEvent: {contentOffset: {y: this._scrollPos}}}],
     {useNativeDriver: true},
@@ -271,6 +274,7 @@ class FlatListExample extends React.PureComponent<Props, State> {
   ) => {
     this._listRef = ref;
   };
+  // $FlowFixMe[missing-local-annot]
   _getItemLayout = (data: any, index: number) => {
     return getItemLayout(data, index, this.state.horizontal);
   };
@@ -282,13 +286,16 @@ class FlatListExample extends React.PureComponent<Props, State> {
       data: state.data.concat(genItemData(100, state.data.length)),
     }));
   };
+  // $FlowFixMe[missing-local-annot]
   _onPressCallback = () => {
     const {onPressDisabled} = this.state;
     const warning = () => console.log('onPress disabled');
     const onPressAction = onPressDisabled ? warning : this._pressItem;
     return onPressAction;
   };
+  // $FlowFixMe[missing-local-annot]
   _onRefresh = () => Alert.alert('onRefresh: nothing to refresh :P');
+  // $FlowFixMe[missing-local-annot]
   _renderItemComponent = () => {
     const flatListPropKey = this.state.useFlatListItemComponent
       ? 'ListItemComponent'
diff --git a/packages/rn-tester/js/examples/FlatList/FlatList-multiColumn.js b/packages/rn-tester/js/examples/FlatList/FlatList-multiColumn.js
index e0bf2fb4e5eeed..ca875072eda9c5 100644
--- a/packages/rn-tester/js/examples/FlatList/FlatList-multiColumn.js
+++ b/packages/rn-tester/js/examples/FlatList/FlatList-multiColumn.js
@@ -152,7 +152,7 @@ class MultiColumnExample extends React.PureComponent<
     item: Item,
     accessibilityCollectionItem: AccessibilityCollectionItem,
     ...
-  }) => {
+  }): $FlowFixMe => {
     return (
       <View
         importantForAccessibility="yes"