diff --git a/packages/react-native/React/Base/RCTBundleURLProvider.mm b/packages/react-native/React/Base/RCTBundleURLProvider.mm
index 906012b06b26..1cc42d71d3bc 100644
--- a/packages/react-native/React/Base/RCTBundleURLProvider.mm
+++ b/packages/react-native/React/Base/RCTBundleURLProvider.mm
@@ -39,8 +39,7 @@ @implementation RCTBundleURLProvider
 
 - (instancetype)init
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     [self _setDefaults];
   }
   return self;
diff --git a/packages/react-native/React/Base/RCTErrorInfo.m b/packages/react-native/React/Base/RCTErrorInfo.m
index 1eb41fe4caed..c4afccd61cb1 100644
--- a/packages/react-native/React/Base/RCTErrorInfo.m
+++ b/packages/react-native/React/Base/RCTErrorInfo.m
@@ -13,8 +13,7 @@ @implementation RCTErrorInfo
 
 - (instancetype)initWithErrorMessage:(NSString *)errorMessage stack:(NSArray<RCTJSStackFrame *> *)stack
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     _errorMessage = [errorMessage copy];
     _stack = [stack copy];
   }
diff --git a/packages/react-native/React/CoreModules/RCTActionSheetManager.mm b/packages/react-native/React/CoreModules/RCTActionSheetManager.mm
index 41150ac877b0..104e0491fc22 100644
--- a/packages/react-native/React/CoreModules/RCTActionSheetManager.mm
+++ b/packages/react-native/React/CoreModules/RCTActionSheetManager.mm
@@ -33,8 +33,7 @@ @implementation RCTActionSheetManager
 
 - (instancetype)init
 {
-  self = [super init];
-  if (self != nullptr) {
+  if (self = [super init]) {
     _alertControllers = [NSMutableArray new];
   }
   return self;
diff --git a/packages/react-native/React/CoreModules/RCTRedBox2Controller.mm b/packages/react-native/React/CoreModules/RCTRedBox2Controller.mm
index 04a10a67219c..7940b3c48e5f 100644
--- a/packages/react-native/React/CoreModules/RCTRedBox2Controller.mm
+++ b/packages/react-native/React/CoreModules/RCTRedBox2Controller.mm
@@ -72,8 +72,7 @@ @implementation RCTRedBox2Controller {
 - (instancetype)initWithCustomButtonTitles:(NSArray<NSString *> *)customButtonTitles
                       customButtonHandlers:(NSArray<RCTRedBox2ButtonPressHandler> *)customButtonHandlers
 {
-  self = [super init];
-  if (self != nullptr) {
+  if (self = [super init]) {
     _lastErrorCookie = -1;
     _customButtonTitles = customButtonTitles;
     _customButtonHandlers = customButtonHandlers;
diff --git a/packages/react-native/React/DevSupport/RCTFrameTimingsObserver.mm b/packages/react-native/React/DevSupport/RCTFrameTimingsObserver.mm
index 51087cfd5d52..aa3c57043d0d 100644
--- a/packages/react-native/React/DevSupport/RCTFrameTimingsObserver.mm
+++ b/packages/react-native/React/DevSupport/RCTFrameTimingsObserver.mm
@@ -294,7 +294,7 @@ - (UIWindow *)_getKeyWindow
     if (scene.activationState == UISceneActivationStateForegroundActive &&
         [scene isKindOfClass:[UIWindowScene class]]) {
       auto windowScene = (UIWindowScene *)scene;
-      for (UIWindow *window = nullptr in windowScene.windows) {
+      for (UIWindow *window in windowScene.windows) {
         if (window.isKeyWindow) {
           return window;
         }
diff --git a/packages/react-native/React/DevSupport/RCTInspectorNetworkHelper.mm b/packages/react-native/React/DevSupport/RCTInspectorNetworkHelper.mm
index f0fa55333445..225a87af2d38 100644
--- a/packages/react-native/React/DevSupport/RCTInspectorNetworkHelper.mm
+++ b/packages/react-native/React/DevSupport/RCTInspectorNetworkHelper.mm
@@ -21,8 +21,7 @@ @implementation RCTInspectorNetworkHelper
 
 - (instancetype)init
 {
-  self = [super init];
-  if (self != nullptr) {
+  if (self = [super init]) {
     NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
     self.session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];
     self.executorsByTaskId = [NSMutableDictionary new];
diff --git a/packages/react-native/React/Fabric/AppleEventBeat.mm b/packages/react-native/React/Fabric/AppleEventBeat.mm
index 66f93729aee8..313231919627 100644
--- a/packages/react-native/React/Fabric/AppleEventBeat.mm
+++ b/packages/react-native/React/Fabric/AppleEventBeat.mm
@@ -29,8 +29,7 @@ @implementation RCTEventBeatFlusherLayer {
 
 - (instancetype)initWithOnDisplay:(void (^)(void))onDisplay
 {
-  self = [super init];
-  if (self != nil) {
+  if (self = [super init]) {
     _onDisplay = [onDisplay copy];
     self.frame = CGRectZero;
   }
@@ -84,11 +83,8 @@ - (void)display
   // before it executes is made safe by the owner check above.
   NSMapTable<CALayer *, RCTEventBeatFlusherLayer *> *layers = layers_;
   RCTExecuteOnMainQueue(^{
-    NSEnumerator<RCTEventBeatFlusherLayer *> *enumerator = layers.objectEnumerator;
-    RCTEventBeatFlusherLayer *layer = enumerator.nextObject;
-    while (layer != nil) {
+    for (RCTEventBeatFlusherLayer *layer in layers.objectEnumerator) {
       [layer removeFromSuperlayer];
-      layer = enumerator.nextObject;
     }
   });
 }
diff --git a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTVirtualViewContainerState.mm b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTVirtualViewContainerState.mm
index 8cbc43f8cb70..1ee1d14a047f 100644
--- a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTVirtualViewContainerState.mm
+++ b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTVirtualViewContainerState.mm
@@ -78,8 +78,7 @@ @implementation RCTVirtualViewContainerState
 
 - (instancetype)initWithScrollView:(RCTScrollViewComponentView *)scrollView
 {
-  self = [super init];
-  if (self != nil) {
+  if (self = [super init]) {
     _virtualViews = [NSMutableSet set];
     _emptyRect = CGRectZero;
     _prerenderRect = CGRectZero;
@@ -143,7 +142,7 @@ - (void)_updateModes:(id<RCTVirtualViewProtocol>)virtualView
   NSArray<id<RCTVirtualViewProtocol>> *virtualViewsIt =
       (virtualView != nullptr) ? @[ virtualView ] : [_virtualViews allObjects];
 
-  for (id<RCTVirtualViewProtocol> vv = nullptr in virtualViewsIt) {
+  for (id<RCTVirtualViewProtocol> vv in virtualViewsIt) {
     CGRect rect = [vv containerRelativeRect:scrollView];
 
     RCTVirtualViewMode mode = RCTVirtualViewModeHidden;
diff --git a/packages/react-native/React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm b/packages/react-native/React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm
index 37db047e8b25..61ef98f921cd 100644
--- a/packages/react-native/React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm
+++ b/packages/react-native/React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm
@@ -757,7 +757,7 @@ - (void)prepareForRecycle
 
   // Clean up box shadow layers to prevent cross-component contamination
   if (_boxShadowLayers != nullptr) {
-    for (CALayer *boxShadowLayer = nullptr in _boxShadowLayers) {
+    for (CALayer *boxShadowLayer in _boxShadowLayers) {
       [boxShadowLayer removeFromSuperlayer];
     }
     [_boxShadowLayers removeAllObjects];
@@ -817,7 +817,7 @@ - (UIView *)betterHitTest:(CGPoint)point withEvent:(UIEvent *)event
     return nil;
   }
 
-  for (UIView *subview = nullptr in [currentContainerView.subviews reverseObjectEnumerator]) {
+  for (UIView *subview in [currentContainerView.subviews reverseObjectEnumerator]) {
     UIView *hitView = [subview hitTest:[subview convertPoint:point fromView:currentContainerView] withEvent:event];
     if (hitView) {
       return hitView;
@@ -975,7 +975,7 @@ - (UIView *)effectiveContentView
     if (_swiftUIWrapper == nullptr) {
       _swiftUIWrapper = [RCTSwiftUIContainerViewWrapper new];
       UIView *swiftUIContentView = [[UIView alloc] init];
-      for (UIView *subview = nullptr in self.subviews) {
+      for (UIView *subview in self.subviews) {
         [swiftUIContentView addSubview:subview];
       }
       swiftUIContentView.clipsToBounds = self.clipsToBounds;
@@ -993,7 +993,7 @@ - (UIView *)effectiveContentView
   } else {
     if (_swiftUIWrapper != nullptr) {
       UIView *swiftUIContentView = _swiftUIWrapper.contentView;
-      for (UIView *subview = nullptr in swiftUIContentView.subviews) {
+      for (UIView *subview in swiftUIContentView.subviews) {
         [self addSubview:subview];
       }
       self.clipsToBounds = swiftUIContentView.clipsToBounds;
@@ -1019,7 +1019,7 @@ - (UIView *)currentContainerView
   if (_useCustomContainerView) {
     if (!_containerView) {
       _containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height)];
-      for (UIView *subview = nullptr in effectiveContentView.subviews) {
+      for (UIView *subview in effectiveContentView.subviews) {
         [_containerView addSubview:subview];
       }
       _containerView.clipsToBounds = effectiveContentView.clipsToBounds;
@@ -1805,10 +1805,10 @@ - (void)transferVisualPropertiesFromView:(UIView *)sourceView toView:(UIView *)d
   if (_filterLayer != nullptr) {
     [destinationView.layer addSublayer:_filterLayer];
   }
-  for (CALayer *layer = nullptr in _backgroundImageLayers) {
+  for (CALayer *layer in _backgroundImageLayers) {
     [destinationView.layer addSublayer:layer];
   }
-  for (CALayer *layer = nullptr in _boxShadowLayers) {
+  for (CALayer *layer in _boxShadowLayers) {
     [destinationView.layer addSublayer:layer];
   }
 }
diff --git a/packages/react-native/React/Modules/RCTUIManager.mm b/packages/react-native/React/Modules/RCTUIManager.mm
index af16e8b0c06d..3764fffef7c4 100644
--- a/packages/react-native/React/Modules/RCTUIManager.mm
+++ b/packages/react-native/React/Modules/RCTUIManager.mm
@@ -246,8 +246,7 @@ @implementation RCTComposedViewRegistry {
 
 - (instancetype)initWithUIManager:(RCTUIManager *)uiManager andRegistry:(NSDictionary<NSNumber *, UIView *> *)registry
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     _uiManager = uiManager;
     _registry = registry;
   }
diff --git a/packages/react-native/React/Views/RCTDebuggingOverlay.m b/packages/react-native/React/Views/RCTDebuggingOverlay.m
index 0c56b948712d..23076423db04 100644
--- a/packages/react-native/React/Views/RCTDebuggingOverlay.m
+++ b/packages/react-native/React/Views/RCTDebuggingOverlay.m
@@ -32,8 +32,7 @@ @implementation RCTDebuggingOverlay {
 
 - (instancetype)initWithFrame:(CGRect)frame
 {
-  self = [super initWithFrame:frame];
-  if (self) {
+  if (self = [super initWithFrame:frame]) {
     _idToTraceUpdateMap = [NSMutableDictionary new];
   }
   return self;
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
index 58a9879af9d5..af5b225e8e7e 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
@@ -234,7 +234,6 @@ - (void)drawAttributedString:(AttributedString)attributedString
                                                    CGFloat baseline =
                                                        lineRect.origin.y + font.ascender + frame.origin.y;
 
-                                                   // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
                                                    for (NSString *line in lines) {
                                                      CGFloat y = 0.0f;
                                                      if ([line isEqualToString:@"underline"]) {
diff --git a/packages/rn-tester/RNTester/NativeExampleViews/UpdatePropertiesExampleView.mm b/packages/rn-tester/RNTester/NativeExampleViews/UpdatePropertiesExampleView.mm
index 2d593b88eb97..d022bcf74855 100644
--- a/packages/rn-tester/RNTester/NativeExampleViews/UpdatePropertiesExampleView.mm
+++ b/packages/rn-tester/RNTester/NativeExampleViews/UpdatePropertiesExampleView.mm
@@ -54,8 +54,7 @@ - (instancetype)initWithFrame:(CGRect)frame
 
 - (instancetype)initWithFrame:(CGRect)frame rootViewFactory:(RCTRootViewFactory *)rootViewFactory
 {
-  self = [super initWithFrame:frame];
-  if (self) {
+  if (self = [super initWithFrame:frame]) {
     _beige = YES;
 
     _rootView = (RCTRootView *)[rootViewFactory viewWithModuleName:@"SetPropertiesExampleApp"
diff --git a/packages/rn-tester/RNTesterUnitTests/RCTNativeAnimatedNodesManagerTests.m b/packages/rn-tester/RNTesterUnitTests/RCTNativeAnimatedNodesManagerTests.m
index bfcbfbfb2339..b932b1992219 100644
--- a/packages/rn-tester/RNTesterUnitTests/RCTNativeAnimatedNodesManagerTests.m
+++ b/packages/rn-tester/RNTesterUnitTests/RCTNativeAnimatedNodesManagerTests.m
@@ -25,8 +25,7 @@ @implementation RCTFakeDisplayLink {
 
 - (instancetype)init
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     _timestamp = 1124.1234143251; // Random
   }
   return self;
@@ -50,8 +49,7 @@ @implementation RCTFakeValueObserver
 
 - (instancetype)init
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     _calls = [NSMutableArray new];
   }
   return self;
@@ -78,8 +76,7 @@ @implementation RCTFakeEvent {
 
 - (instancetype)initWithName:(NSString *)name viewTag:(NSNumber *)viewTag arguments:(NSArray *)arguments
 {
-  self = [super init];
-  if (self) {
+  if (self = [super init]) {
     _eventName = name;
     _viewTag = viewTag;
     _arguments = arguments;