Reena is a given name and a variant of Rena

Notable people with the given name include:

Nisha (actress), Indian film actress in Malayalam films Reena Bhardwaj, British Indian singer, songwriter and recording artist Reena Kaushal Dharmshaktu, first Indian woman to ski to the South Pole Reena Saini Kallat, Indian artist Reena Kumari (archer), Indian athlete Reena Ninan, American television journalist Reena Raggi, US federal judge Reena Roy, Hindi film actress