diff --git a/src/ORM/OrmV2PersistenceStrategy.php b/src/ORM/OrmV2PersistenceStrategy.php
index 649110c82..27df8acff 100644
--- a/src/ORM/OrmV2PersistenceStrategy.php
+++ b/src/ORM/OrmV2PersistenceStrategy.php
@@ -52,6 +52,7 @@ public function relationshipMetadata(string $parent, string $child, string $fiel
         return new RelationshipMetadata(
             isCascadePersist: $association['isCascadePersist'],
             inverseField: $metadata->isSingleValuedAssociation($association['fieldName']) ? $association['fieldName'] : null,
+            isCollection: $metadata->isCollectionValuedAssociation($association['fieldName']),
         );
     }
 
diff --git a/src/ORM/OrmV3PersistenceStrategy.php b/src/ORM/OrmV3PersistenceStrategy.php
index 047208da2..9a6e539ef 100644
--- a/src/ORM/OrmV3PersistenceStrategy.php
+++ b/src/ORM/OrmV3PersistenceStrategy.php
@@ -17,6 +17,7 @@
 use Doctrine\ORM\Mapping\ClassMetadata;
 use Doctrine\ORM\Mapping\InverseSideMapping;
 use Doctrine\ORM\Mapping\MappingException as ORMMappingException;
+use Doctrine\ORM\Mapping\ToManyAssociationMapping;
 use Doctrine\Persistence\Mapping\MappingException;
 use Zenstruck\Foundry\Persistence\RelationshipMetadata;
 
@@ -47,8 +48,9 @@ public function relationshipMetadata(string $parent, string $child, string $fiel
         }
 
         return new RelationshipMetadata(
-            isCascadePersist: $association->isCascadePersist(),
+            isCascadePersist: ($inversedAssociation ?? $association)->isCascadePersist(),
             inverseField: $metadata->isSingleValuedAssociation($association->fieldName) ? $association->fieldName : null,
+            isCollection: ($inversedAssociation ?? $association) instanceof ToManyAssociationMapping
         );
     }
 
diff --git a/src/Persistence/PersistentObjectFactory.php b/src/Persistence/PersistentObjectFactory.php
index 2bd83ffd8..de6733f13 100644
--- a/src/Persistence/PersistentObjectFactory.php
+++ b/src/Persistence/PersistentObjectFactory.php
@@ -275,8 +275,25 @@ protected function normalizeParameter(string $field, mixed $value): mixed
             $value->persist = $this->persist; // todo - breaks immutability
         }
 
-        if ($value instanceof self && Configuration::instance()->persistence()->relationshipMetadata(static::class(), $value::class(), $field)?->isCascadePersist) {
-            $value->persist = false;
+        if ($value instanceof self) {
+            $pm = Configuration::instance()->persistence();
+
+            $relationshipMetadata = $pm->relationshipMetadata($value::class(), static::class(), $field);
+
+            // handle inversed OneToOne
+            if ($relationshipMetadata && !$relationshipMetadata->isCollection && $inverseField = $relationshipMetadata->inverseField) {
+                $this->tempAfterPersist[] = static function(object $object) use ($value, $inverseField, $pm) {
+                    $value->create([$inverseField => $object]);
+                    $pm->refresh($object);
+                };
+
+                // creation delegated to afterPersist hook - return empty array here
+                return null;
+            }
+
+            if (Configuration::instance()->persistence()->relationshipMetadata(static::class(), $value::class(), $field)?->isCascadePersist) {
+                $value->persist = false;
+            }
         }
 
         return unproxy(parent::normalizeParameter($field, $value));
diff --git a/src/Persistence/RelationshipMetadata.php b/src/Persistence/RelationshipMetadata.php
index 6ea69f926..fb9829ab4 100644
--- a/src/Persistence/RelationshipMetadata.php
+++ b/src/Persistence/RelationshipMetadata.php
@@ -21,6 +21,7 @@ final class RelationshipMetadata
     public function __construct(
         public readonly bool $isCascadePersist,
         public readonly ?string $inverseField,
+        public readonly bool $isCollection,
     ) {
     }
 }
diff --git a/tests/Fixture/Entity/Address.php b/tests/Fixture/Entity/Address.php
index 9cac62894..b8798067c 100644
--- a/tests/Fixture/Entity/Address.php
+++ b/tests/Fixture/Entity/Address.php
@@ -20,6 +20,8 @@
 #[ORM\MappedSuperclass]
 abstract class Address extends Base
 {
+    protected Contact|null $contact = null;
+
     #[ORM\Column(length: 255)]
     private string $city;
 
@@ -28,6 +30,16 @@ public function __construct(string $city)
         $this->city = $city;
     }
 
+    public function getContact(): Contact|null
+    {
+        return $this->contact;
+    }
+
+    public function setContact(Contact|null $contact): void
+    {
+        $this->contact = $contact;
+    }
+
     public function getCity(): string
     {
         return $this->city;
diff --git a/tests/Fixture/Entity/Address/CascadeAddress.php b/tests/Fixture/Entity/Address/CascadeAddress.php
index 4eb75e627..1f6a9eda7 100644
--- a/tests/Fixture/Entity/Address/CascadeAddress.php
+++ b/tests/Fixture/Entity/Address/CascadeAddress.php
@@ -13,6 +13,8 @@
 
 use Doctrine\ORM\Mapping as ORM;
 use Zenstruck\Foundry\Tests\Fixture\Entity\Address;
+use Zenstruck\Foundry\Tests\Fixture\Entity\Contact;
+use Zenstruck\Foundry\Tests\Fixture\Entity\Contact\CascadeContact;
 
 /**
  * @author Kevin Bond <kevinbond@gmail.com>
@@ -20,4 +22,6 @@
 #[ORM\Entity]
 class CascadeAddress extends Address
 {
+    #[ORM\OneToOne(targetEntity: CascadeContact::class, mappedBy: 'address', cascade: ['persist', 'remove'])]
+    protected Contact|null $contact = null;
 }
diff --git a/tests/Fixture/Entity/Address/StandardAddress.php b/tests/Fixture/Entity/Address/StandardAddress.php
index 5c64946db..9ef5e7d69 100644
--- a/tests/Fixture/Entity/Address/StandardAddress.php
+++ b/tests/Fixture/Entity/Address/StandardAddress.php
@@ -13,6 +13,8 @@
 
 use Doctrine\ORM\Mapping as ORM;
 use Zenstruck\Foundry\Tests\Fixture\Entity\Address;
+use Zenstruck\Foundry\Tests\Fixture\Entity\Contact;
+use Zenstruck\Foundry\Tests\Fixture\Entity\Contact\StandardContact;
 
 /**
  * @author Kevin Bond <kevinbond@gmail.com>
@@ -20,4 +22,6 @@
 #[ORM\Entity]
 class StandardAddress extends Address
 {
+    #[ORM\OneToOne(targetEntity: StandardContact::class, mappedBy: 'address')]
+    protected Contact|null $contact = null;
 }
diff --git a/tests/Fixture/Entity/Contact/CascadeContact.php b/tests/Fixture/Entity/Contact/CascadeContact.php
index f0f4f1357..21b58e3f7 100644
--- a/tests/Fixture/Entity/Contact/CascadeContact.php
+++ b/tests/Fixture/Entity/Contact/CascadeContact.php
@@ -40,7 +40,7 @@ class CascadeContact extends Contact
     #[ORM\JoinTable(name: 'category_tag_cascade_secondary')]
     protected Collection $secondaryTags;
 
-    #[ORM\OneToOne(targetEntity: CascadeAddress::class, cascade: ['persist', 'remove'])]
+    #[ORM\OneToOne(targetEntity: CascadeAddress::class, inversedBy: 'contact', cascade: ['persist', 'remove'])]
     #[ORM\JoinColumn(nullable: false)]
     protected Address $address;
 }
diff --git a/tests/Integration/ORM/EntityFactoryRelationshipTestCase.php b/tests/Integration/ORM/EntityFactoryRelationshipTestCase.php
index a786f217d..ba0b6d338 100644
--- a/tests/Integration/ORM/EntityFactoryRelationshipTestCase.php
+++ b/tests/Integration/ORM/EntityFactoryRelationshipTestCase.php
@@ -252,6 +252,22 @@ public function inverse_many_to_many_with_two_relationships_same_entity(): void
         $this->contactFactory()::assert()->count(6);
     }
 
+    /**
+     * @test
+     */
+    public function inversed_one_to_one(): void
+    {
+        $addressFactory = $this->addressFactory();
+        $contactFactory = $this->contactFactory();
+
+        $address = $addressFactory->create(['contact' => $contactFactory]);
+
+        self::assertNotNull($address->getContact());
+
+        $addressFactory::assert()->count(1);
+        $contactFactory::assert()->count(1);
+    }
+
     /**
      * @test
      */