diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/classifiers.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/classifiers.kt
index 218ea712028..0fe482841a6 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/classifiers.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/classifiers.kt
@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.CirRootNode.Cla
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.buildClassNode
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.buildTypeAliasNode
 import org.jetbrains.kotlin.descriptors.commonizer.utils.CommonizedGroupMap
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.storage.NullableLazyValue
 import org.jetbrains.kotlin.storage.StorageManager
@@ -33,7 +34,7 @@ internal fun mergeClasses(
         clazz?.unsubstitutedMemberScope?.collectMembers(
             PropertyCollector { propertiesMap[PropertyApproximationKey(it)][index] = it },
             FunctionCollector { functionsMap[FunctionApproximationKey(it)][index] = it },
-            ClassCollector { classesMap[it.name][index] = it }
+            ClassCollector { classesMap[it.name.intern()][index] = it }
         )
     }
 
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirAnnotation.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirAnnotation.kt
index 4bd09de5aa6..d523b1fa4c4 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirAnnotation.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirAnnotation.kt
@@ -13,7 +13,7 @@ import org.jetbrains.kotlin.resolve.constants.*
 
 class CirAnnotation(original: AnnotationDescriptor) {
     val fqName: FqName = original.fqName?.intern() ?: error("Annotation with no FQ name: ${original::class.java}, $original")
-    val allValueArguments: Map<Name, ConstantValue<*>> = original.allValueArguments
+    val allValueArguments: Map<Name, ConstantValue<*>> = original.allValueArguments.mapKeys { it.key.intern() }
 
     init {
         allValueArguments.forEach { (name, constantValue) ->
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirClass.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirClass.kt
index 71d3a8aa1ac..7e08a068c0c 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirClass.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirClass.kt
@@ -64,7 +64,7 @@ data class CirCommonClassConstructor(
 
 class CirClassImpl(original: ClassDescriptor) : CirClass {
     override val annotations = original.annotations.map(::CirAnnotation)
-    override val name = original.name
+    override val name = original.name.intern()
     override val typeParameters = original.declaredTypeParameters.map(::CirTypeParameterImpl)
     override val companion = original.companionObjectDescriptor?.fqNameSafe?.intern()
     override val kind = original.kind
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunction.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunction.kt
index 0922a722dfb..29ffb185254 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunction.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunction.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir
 
 import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.Name
 
 interface CirFunctionModifiers {
@@ -72,7 +73,7 @@ data class CirCommonValueParameter(
 }
 
 class CirValueParameterImpl(original: ValueParameterDescriptor) : CirValueParameter {
-    override val name = original.name
+    override val name = original.name.intern()
     override val annotations = original.annotations.map(::CirAnnotation)
     override val returnType = CirType.create(original.returnType!!)
     override val varargElementType = original.varargElementType?.let(CirType.Companion::create)
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunctionOrProperty.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunctionOrProperty.kt
index 0d4a18a3dd2..002a0950031 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunctionOrProperty.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirFunctionOrProperty.kt
@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir
 
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.CirExtensionReceiver.Companion.toReceiver
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 
 interface CirFunctionOrProperty : CirAnnotatedDeclaration, CirNamedDeclaration, CirDeclarationWithTypeParameters, CirDeclarationWithVisibility, CirDeclarationWithModality, CirMaybeCallableMemberOfClass {
     val isExternal: Boolean
@@ -24,7 +25,7 @@ abstract class CirCommonFunctionOrProperty : CirFunctionOrProperty {
 
 abstract class CirFunctionOrPropertyImpl<T : CallableMemberDescriptor>(original: T) : CirFunctionOrProperty {
     final override val annotations = original.annotations.map(::CirAnnotation)
-    final override val name = original.name
+    final override val name = original.name.intern()
     final override val modality = original.modality
     final override val visibility = original.visibility
     final override val isExternal = original.isExternal
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirModule.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirModule.kt
index 5e35a8c949f..a4bc2f2dc6e 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirModule.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirModule.kt
@@ -6,8 +6,9 @@
 package org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir
 
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.Name
 
 data class CirModule(val name: Name) : CirDeclaration {
-    constructor(descriptor: ModuleDescriptor) : this(descriptor.name)
+    constructor(descriptor: ModuleDescriptor) : this(descriptor.name.intern())
 }
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeAlias.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeAlias.kt
index 9bdb3d465bf..8675fffd367 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeAlias.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeAlias.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir
 
 import org.jetbrains.kotlin.descriptors.TypeAliasDescriptor
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 
 interface CirTypeAlias : CirAnnotatedDeclaration, CirNamedDeclaration, CirDeclarationWithTypeParameters, CirDeclarationWithVisibility {
     val underlyingType: CirSimpleType
@@ -14,7 +15,7 @@ interface CirTypeAlias : CirAnnotatedDeclaration, CirNamedDeclaration, CirDeclar
 
 class CirTypeAliasImpl(original: TypeAliasDescriptor) : CirTypeAlias {
     override val annotations = original.annotations.map(::CirAnnotation)
-    override val name = original.name
+    override val name = original.name.intern()
     override val typeParameters = original.declaredTypeParameters.map(::CirTypeParameterImpl)
     override val visibility = original.visibility
     override val underlyingType = CirSimpleType(original.underlyingType)
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeParameter.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeParameter.kt
index f6027d9b503..d48eccc2a8f 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeParameter.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/ir/CirTypeParameter.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir
 
 import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.types.Variance
 
@@ -28,7 +29,7 @@ data class CirCommonTypeParameter(
 
 class CirTypeParameterImpl(original: TypeParameterDescriptor) : CirTypeParameter {
     override val annotations = original.annotations.map(::CirAnnotation)
-    override val name = original.name
+    override val name = original.name.intern()
     override val isReified = original.isReified
     override val variance = original.variance
     override val upperBounds = original.upperBounds.map(CirType.Companion::create)
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/memberScopes.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/memberScopes.kt
index ef5f2a1bc98..e796a57b68a 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/memberScopes.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/memberScopes.kt
@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.descriptors.commonizer.mergedtree
 
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.commonizer.core.Commonizer
+import org.jetbrains.kotlin.descriptors.commonizer.utils.*
 import org.jetbrains.kotlin.descriptors.commonizer.utils.fqNameWithTypeParameters
 import org.jetbrains.kotlin.descriptors.commonizer.utils.isBlacklistedDarwinFunction
 import org.jetbrains.kotlin.descriptors.commonizer.utils.isDeprecated
@@ -69,7 +70,7 @@ internal data class PropertyApproximationKey(
     val extensionReceiverParameter: String?
 ) {
     constructor(property: PropertyDescriptor) : this(
-        property.name,
+        property.name.intern(),
         property.extensionReceiverParameter?.type?.fqNameWithTypeParameters
     )
 }
@@ -81,8 +82,8 @@ internal data class FunctionApproximationKey(
     val extensionReceiverParameter: String?
 ) {
     constructor(function: SimpleFunctionDescriptor) : this(
-        function.name,
-        function.valueParameters.map { it.name to it.type.fqNameWithTypeParameters },
+        function.name.intern(),
+        function.valueParameters.map { it.name.intern() to it.type.fqNameWithTypeParameters },
         function.extensionReceiverParameter?.type?.fqNameWithTypeParameters
     )
 }
@@ -92,6 +93,6 @@ internal data class ConstructorApproximationKey(
     val valueParameters: List<Pair<Name, String>>
 ) {
     constructor(constructor: ConstructorDescriptor) : this(
-        constructor.valueParameters.map { it.name to it.type.fqNameWithTypeParameters }
+        constructor.valueParameters.map { it.name.intern() to it.type.fqNameWithTypeParameters }
     )
 }
\ No newline at end of file
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/modules.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/modules.kt
index b7090a5cc42..53a1811fdca 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/modules.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/modules.kt
@@ -32,7 +32,7 @@ internal fun mergeModules(
         }
     }
 
-    val moduleName = modules.firstNonNull().name
+    val moduleName = modules.firstNonNull().name.intern()
     for ((packageFqName, packageMemberScopesGroup) in packageMemberScopesMap) {
         node.packages += mergePackages(storageManager, cacheRW, moduleName, packageFqName, packageMemberScopesGroup.toList())
     }
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/packages.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/packages.kt
index beaf4716de5..b4aec8a3cd5 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/packages.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/packages.kt
@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.CirPackageNode
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.CirRootNode
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.buildPackageNode
 import org.jetbrains.kotlin.descriptors.commonizer.utils.CommonizedGroupMap
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.scopes.MemberScope
@@ -36,8 +37,8 @@ internal fun mergePackages(
         memberScope?.collectMembers(
             PropertyCollector { propertiesMap[PropertyApproximationKey(it)][index] = it },
             FunctionCollector { functionsMap[FunctionApproximationKey(it)][index] = it },
-            ClassCollector { classesMap[it.name][index] = it },
-            TypeAliasCollector { typeAliasesMap[it.name][index] = it }
+            ClassCollector { classesMap[it.name.intern()][index] = it },
+            TypeAliasCollector { typeAliasesMap[it.name.intern()][index] = it }
         )
     }
 
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/root.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/root.kt
index f8d2cb667cc..68572a52cd6 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/root.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/mergedtree/root.kt
@@ -10,6 +10,7 @@ import org.jetbrains.kotlin.descriptors.commonizer.TargetProvider
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.CirRootNode
 import org.jetbrains.kotlin.descriptors.commonizer.mergedtree.ir.buildRootNode
 import org.jetbrains.kotlin.descriptors.commonizer.utils.CommonizedGroupMap
+import org.jetbrains.kotlin.descriptors.commonizer.utils.intern
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.storage.StorageManager
 
@@ -23,7 +24,7 @@ internal fun mergeRoots(
 
     targetProviders.forEachIndexed { index, targetProvider ->
         for (module in targetProvider.modulesProvider.loadModules()) {
-            modulesMap[module.name][index] = module
+            modulesMap[module.name.intern()][index] = module
         }
     }
 
diff --git a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/utils/type.kt b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/utils/type.kt
index 264dece1e16..3f01cd7cb56 100644
--- a/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/utils/type.kt
+++ b/native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/utils/type.kt
@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.descriptors.commonizer.utils
 
 import org.jetbrains.kotlin.descriptors.ClassifierDescriptor
 import org.jetbrains.kotlin.name.FqName
+import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.TypeUtils
@@ -21,6 +22,7 @@ internal inline val KotlinType.fqNameInterned: FqName
     get() = declarationDescriptor.fqNameSafe.intern()
 
 internal fun FqName.intern(): FqName = fqNameInterner.intern(this)
+internal fun Name.intern(): Name = nameInterner.intern(this)
 
 internal val KotlinType.fqNameWithTypeParameters: String
     get() {
@@ -75,3 +77,4 @@ private fun StringBuilder.buildFqNameWithTypeParameters(type: KotlinType, explor
 private val stringInterner = NonThreadSafeInterner<String>()
 
 private val fqNameInterner = NonThreadSafeInterner<FqName>()
+private val nameInterner = NonThreadSafeInterner<Name>()