diff --git a/src/main/java/com/fasterxml/jackson/databind/ext/KotlinSupport.java b/src/main/java/com/fasterxml/jackson/databind/ext/KotlinSupport.java
new file mode 100644
index 0000000000..c4349e51a1
--- /dev/null
+++ b/src/main/java/com/fasterxml/jackson/databind/ext/KotlinSupport.java
@@ -0,0 +1,23 @@
+package com.fasterxml.jackson.databind.ext;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+
+public class KotlinSupport {
+    public static boolean isJvmInlineClassSyntheticConstructor(Constructor<?> ctor) {
+        Class<?>[] params = ctor.getParameterTypes();
+        if (params.length == 0) {
+            return false;
+        }
+
+        Class<?> lastParam = params[params.length - 1];
+        return ctor.isSynthetic() && lastParam.getName().equals("kotlin.jvm.internal.DefaultConstructorMarker");
+    }
+
+    public static boolean isJvmInlineClassSyntheticBoxingFunction(Method method) {
+        return Modifier.isStatic(method.getModifiers())
+                && method.isSynthetic()
+                && method.getName().equals("box-impl");
+    }
+}
diff --git a/src/main/java/com/fasterxml/jackson/databind/introspect/AnnotatedCreatorCollector.java b/src/main/java/com/fasterxml/jackson/databind/introspect/AnnotatedCreatorCollector.java
index 96741181af..25a0b9ff70 100644
--- a/src/main/java/com/fasterxml/jackson/databind/introspect/AnnotatedCreatorCollector.java
+++ b/src/main/java/com/fasterxml/jackson/databind/introspect/AnnotatedCreatorCollector.java
@@ -11,6 +11,7 @@
 
 import com.fasterxml.jackson.databind.AnnotationIntrospector;
 import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.ext.KotlinSupport;
 import com.fasterxml.jackson.databind.introspect.AnnotatedClass.Creators;
 import com.fasterxml.jackson.databind.type.TypeFactory;
 import com.fasterxml.jackson.databind.util.ClassUtil;
@@ -282,7 +283,9 @@ private static boolean _isIncludableFactoryMethod(Method m)
         }
         // 09-Nov-2020, ckozak: Avoid considering synthetic methods such as
         // lambdas used within methods because they're not relevant.
-        return !m.isSynthetic();
+        return !m.isSynthetic()
+                // 02-Sep-2023: As per [databind#4066] Kotlin needs some synthetic factory methods
+                || KotlinSupport.isJvmInlineClassSyntheticBoxingFunction(m);
     }
 
     protected AnnotatedConstructor constructDefaultConstructor(ClassUtil.Ctor ctor,
@@ -406,8 +409,10 @@ private final AnnotationMap collectAnnotations(AnnotatedElement main, AnnotatedE
         return c.asAnnotationMap();
     }
 
-    // for [databind#1005]: do not use or expose synthetic constructors
     private static boolean isIncludableConstructor(Constructor<?> c) {
-        return !c.isSynthetic();
+        // for [databind#1005]: do not use or expose synthetic constructors
+        return !c.isSynthetic()
+                // 02-Sep-2023: As per [databind#4066] Kotlin needs some synthetic constructors
+                || KotlinSupport.isJvmInlineClassSyntheticConstructor(c);
     }
 }