Karina Smirnoff (born January 2, 1978) (Ukrainian: Карiна Смiрнова) is a Ukranian-American professional ballroom dancer.

She is a five-time U.S. National Champion, World Trophy Champion, and Asian Open Champion. Smirnoff has won the title at the UK Open, is a three time champion at the US Open, two time champion at the Asian Open, five time champion at the Dutch Open, five time US National Professional Champion. She has been ranked 2nd in the world, and took second at the British Open Blackpool Dance Festival .

She is "the first woman to ever make the British Professional Final with three different partners".