Rui Costa Pimenta
| Rui Costa Pimenta | |
|---|---|
| Pimenta in 2014 | |
| National President of PCO | |
| Assumed office 7 December 1995 | |
| Preceded by | Created office | 
| Personal details | |
| Born | Rui Costa Pimenta 25 June 1957 São Paulo, SP, Brazil | 
| Political party | PCO (1995–present) PT (1980–1995) | 
| Spouse | Anaí Caproni (m. 1995) | 
Rui Costa Pimenta (born in São Paulo, 25 June 1957) is a Brazilian politician and a perennial presidential candidate aligned with the Trotskyist Workers' Cause Party (Portuguese: Partido da Causa Operária).
He was their candidate in the 2002, 2006, 2010 and 2014 presidential elections and placed last in all of the elections he ran.