diff --git a/hibernate-core/src/main/java/org/hibernate/jpa/internal/util/LockModeTypeHelper.java b/hibernate-core/src/main/java/org/hibernate/jpa/internal/util/LockModeTypeHelper.java
index 97b6f11513..6da1cdadef 100644
--- a/hibernate-core/src/main/java/org/hibernate/jpa/internal/util/LockModeTypeHelper.java
+++ b/hibernate-core/src/main/java/org/hibernate/jpa/internal/util/LockModeTypeHelper.java
@@ -40,12 +40,12 @@ public final class LockModeTypeHelper {
 		}
 		else if ( String.class.isInstance( value ) ) {
 			// first try LockMode name
-			LockMode lockMode = LockMode.valueOf( (String) value );
+			LockMode lockMode = LockMode.fromExternalForm( (String) value );
 			if ( lockMode == null ) {
 				try {
 					lockMode = getLockMode( LockModeType.valueOf( (String) value ) );
 				}
-				catch ( Exception ignore ) {
+				catch (Exception ignore) {
 				}
 			}
 			if ( lockMode != null ) {
diff --git a/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java b/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
index ec4dc2f87b..d43b73812a 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/internal/NativeQueryImpl.java
@@ -47,6 +47,7 @@ import org.hibernate.graph.GraphSemantic;
 import org.hibernate.graph.RootGraph;
 import org.hibernate.internal.util.StringHelper;
 import org.hibernate.internal.util.collections.CollectionHelper;
+import org.hibernate.jpa.internal.util.LockModeTypeHelper;
 import org.hibernate.query.NativeQuery;
 import org.hibernate.query.ParameterMetadata;
 import org.hibernate.query.Query;
@@ -613,6 +614,9 @@ public class NativeQueryImpl<T> extends AbstractProducedQuery<T> implements Nati
 		else if ( LockModeType.class.isInstance( value ) ) {
 			applyLockModeTypeHint( (LockModeType) value );
 		}
+		else if ( String.class.isInstance( value ) ) {
+			applyHibernateLockModeHint( LockModeTypeHelper.interpretLockMode( value ) );
+		}
 		else {
 			throw new IllegalArgumentException(
 					String.format(
diff --git a/hibernate-core/src/test/java/org/hibernate/jpa/test/query/NamedQueryTest.java b/hibernate-core/src/test/java/org/hibernate/jpa/test/query/NamedQueryTest.java
index 309976b4f8..5919627c6b 100644
--- a/hibernate-core/src/test/java/org/hibernate/jpa/test/query/NamedQueryTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/jpa/test/query/NamedQueryTest.java
@@ -16,7 +16,9 @@ import javax.persistence.NamedQueries;
 import javax.persistence.NamedQuery;
 import javax.persistence.Query;
 
+import org.hibernate.LockMode;
 import org.hibernate.Session;
+import org.hibernate.jpa.QueryHints;
 import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
 import org.hibernate.query.NativeQuery;
 
@@ -192,6 +194,18 @@ public class NamedQueryTest extends BaseEntityManagerFunctionalTestCase {
 		} );
 	}
 
+	@Test
+	@TestForIssue(jiraKey = "HHH-14816")
+	public void testQueryHintLockMode() {
+		doInJPA( this::entityManagerFactory, entityManager -> {
+					 Query query = entityManager.createNamedQuery( "NamedNativeQuery" );
+					 query.setHint( QueryHints.HINT_NATIVE_LOCKMODE, "none" );
+					 query.setParameter( 1, GAME_TITLES[0] );
+					 assertEquals( LockMode.NONE, query.getHints().get( QueryHints.HINT_NATIVE_LOCKMODE ) );
+				 }
+		);
+	}
+
 	@Entity(name = "Game")
 	@NamedQueries(@NamedQuery(name = "NamedQuery", query = "select g from Game g where title = ?1"))
 	@NamedNativeQueries(@NamedNativeQuery(name = "NamedNativeQuery", query = "select * from Game g where title = ?"))