Frederica Piedade (born 5 June 1982) is a former Portuguese tennis player.

Her career-high WTA singles ranking is 142, which she reached on 15 May 2006; her best doubles ranking is No.

Piedade has competed for the Portugal Fed Cup team, having a total win–loss record of 12–4.

Though not officially retired, she hasn't played in the professional circuit since 2009.

In the summer of 2014, Frederica toured the Portuguese communities on Long Island, New York as she prepared for the US Open.