But it's her latest photo that really seals the deal that these two women are related.
Hargitay posted a side-by-side comparison photo of her and her mother, faces split down the middle and melded together.
If it wasn't for the difference in hair color, one might mistake the combined photos for one of the same woman.
Mansfield died in 1967 in a car accident while Hargitay was in the back seat of the vehicle.
Swim Week Miami Beach 2014 [PHOTOS]