New mom Scarlett Johansson sparked speculation that she’d secretly married her ­fiancé/baby-daddy Romain Dauriac on Tuesday night when she appeared to be wearing a wedding band along with her engagement ring at the second annual Champions of Rockaway fundraiser at Hudson Terrace.

The “Avengers” star took a night away from new baby Rose to host the benefit with her twin, Hunter.

Guests included Comptroller Scott Stringer, his driven wife Elyse Buxbaum and Jamie Foxx.