Frederica Piedade
 Frederica Piedade (born 5 June 1982) is a Portuguese tennis player. Her career high WTA singles ranking is 142 which she reached on 15 May 2006; her career high doubles ranking is 158 achieved on 16 February 2009. Piedade has competed for he 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.