This supermodel knows how to make a splash ... and she's proving polka dots are still having a major moment.

The brunette beauty is showing off her killer figure in a strappy polka-dot bathing suit for a head-turning, retro-inspired ensemble.

Hint: She’s a runway regular who’s also made waves on the big screen.

So, can you guess who's behind the dots?

Dive on into the gallery for the reveal!!!