Rita Fontemanha (born 13 November 1993) is a Portuguese footballer who plays as a defender for Sporting CP and formerly the Portugal national team.
Prior to her career in football, Fontemanha played tennis. Following a season in which she broke into Boavista's senior team, it was announced, on 6 August 2014, that she would be transferring to Spanish club Atlético Madrid. Following two seasons in Madrid, she joined Sporting CP in Portugal. At Sporting, she played predominantly as a full-back. In June 2018, Fontemanha extended her contract with Sporting, committing herself to the club until 2022.
Fontemanha made her debut for the Portugal national team on 21 September 2015 against Ukraine.