diff --git a/spring-expression/spring-expression.gradle b/spring-expression/spring-expression.gradle
index 920f7c7bc0..4b31d5b6f5 100644
--- a/spring-expression/spring-expression.gradle
+++ b/spring-expression/spring-expression.gradle
@@ -4,6 +4,7 @@ apply plugin: "kotlin"
 
 dependencies {
 	api(project(":spring-core"))
+	optional("org.jetbrains.kotlin:kotlin-reflect")
 	testImplementation(testFixtures(project(":spring-core")))
 	testImplementation("org.jetbrains.kotlin:kotlin-reflect")
 	testImplementation("org.jetbrains.kotlin:kotlin-stdlib")
diff --git a/spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java b/spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java
index fa2cd34fbc..d9e6dcb373 100644
--- a/spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java
+++ b/spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java
@@ -27,7 +27,15 @@ import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+import kotlin.jvm.JvmClassMappingKt;
+import kotlin.reflect.KClass;
+import kotlin.reflect.KMutableProperty;
+import kotlin.reflect.KProperty;
+import kotlin.reflect.full.KClasses;
+import kotlin.reflect.jvm.ReflectJvmMapping;
+
 import org.springframework.asm.MethodVisitor;
+import org.springframework.core.KotlinDetector;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.convert.Property;
 import org.springframework.core.convert.TypeDescriptor;
@@ -55,6 +63,7 @@ import org.springframework.util.StringUtils;
  * @author Juergen Hoeller
  * @author Phillip Webb
  * @author Sam Brannen
+ * @author Sebastien Deleuze
  * @since 3.0
  * @see StandardEvaluationContext
  * @see SimpleEvaluationContext
@@ -401,7 +410,8 @@ public class ReflectivePropertyAccessor implements PropertyAccessor {
 		Method[] methods = getSortedMethods(clazz);
 		for (String methodSuffix : methodSuffixes) {
 			for (Method method : methods) {
-				if (isCandidateForProperty(method, clazz) && method.getName().equals(prefix + methodSuffix) &&
+				if (isCandidateForProperty(method, clazz) &&
+						(method.getName().equals(prefix + methodSuffix) || isKotlinProperty(method, methodSuffix)) &&
 						method.getParameterCount() == numberOfParams &&
 						(!mustBeStatic || Modifier.isStatic(method.getModifiers())) &&
 						(requiredReturnTypes.isEmpty() || requiredReturnTypes.contains(method.getReturnType()))) {
@@ -557,6 +567,13 @@ public class ReflectivePropertyAccessor implements PropertyAccessor {
 		return this;
 	}
 
+	private static boolean isKotlinProperty(Method method, String methodSuffix) {
+		Class<?> clazz = method.getDeclaringClass();
+		return KotlinDetector.isKotlinReflectPresent() &&
+				KotlinDetector.isKotlinType(clazz)  &&
+				KotlinDelegate.isKotlinProperty(method, methodSuffix);
+	}
+
 
 	/**
 	 * Captures the member (method/field) to call reflectively to access a property value
@@ -755,4 +772,24 @@ public class ReflectivePropertyAccessor implements PropertyAccessor {
 		}
 	}
 
+	/**
+	 * Inner class to avoid a hard dependency on Kotlin at runtime.
+	 */
+	private static class KotlinDelegate {
+
+		public static boolean isKotlinProperty(Method method, String methodSuffix) {
+			KClass<?> kClass = JvmClassMappingKt.getKotlinClass(method.getDeclaringClass());
+			for (KProperty<?> property : KClasses.getMemberProperties(kClass)) {
+				if (methodSuffix.equalsIgnoreCase(property.getName()) &&
+						(method.equals(ReflectJvmMapping.getJavaGetter(property)) ||
+								property instanceof KMutableProperty<?> mutableProperty &&
+										method.equals(ReflectJvmMapping.getJavaSetter(mutableProperty)))) {
+					return true;
+				}
+			}
+			return false;
+		}
+
+	}
+
 }
diff --git a/spring-expression/src/test/kotlin/org/springframework/expression/spel/SpelReproKotlinTests.kt b/spring-expression/src/test/kotlin/org/springframework/expression/spel/SpelReproKotlinTests.kt
index 65260a1ef4..24fc744adf 100644
--- a/spring-expression/src/test/kotlin/org/springframework/expression/spel/SpelReproKotlinTests.kt
+++ b/spring-expression/src/test/kotlin/org/springframework/expression/spel/SpelReproKotlinTests.kt
@@ -55,6 +55,20 @@ class SpelReproKotlinTests {
 		assertThat(expr.getValue(context, Boolean::class.java)).isFalse()
 	}
 
+	@Test
+	fun `gh-30468 Unmangle Kotlin inlined class getter`() {
+		context.setVariable("something", Something(UUID(123), "name"))
+		val expr = parser.parseExpression("#something.id")
+		assertThat(expr.getValue(context, Int::class.java)).isEqualTo(123)
+	}
+
+	@Test
+	fun `gh-30468 Unmangle Kotlin inlined class setter`() {
+		context.setVariable("something", Something(UUID(123), "name"))
+		val expr = parser.parseExpression("#something.id = 456")
+		assertThat(expr.getValue(context, Int::class.java)).isEqualTo(456)
+	}
+
 	@Suppress("UNUSED_PARAMETER")
 	class Config {
 
@@ -71,4 +85,11 @@ class SpelReproKotlinTests {
 		}
 
 	}
+
+	@JvmInline value class UUID(val value: Int)
+
+	data class Something(
+		var id: UUID,
+		var name: String,
+	)
 }