Maria Conceição da Costa Ferreira (born 13 March 1962 in Aveleda) is a retired Portuguese long-distance runner.
She won the 1993 IAAF World Half Marathon Championships, and finished sixth in 10,000 metres at the 1993 World Championships.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 1984 | Los Angeles, United States | 39th | Marathon | 2:50:58 | ||
| 1986 | Moscow, Soviet Union | 13th | 5000 m | 15:54.01 | ||
| Stuttgart, West Germany | 26th | 10,000 m | 33:38.23 | |||
| 1988 | Seoul, South Korea | 20th | Marathon | 2:34:23 | ||
| 1990 | Pittsburgh Marathon | Pittsburgh, United States | 1st | Marathon | 2:30:34 | |
| Split, SFR Yugoslavia | - | Marathon | DNF | |||
| 1991 | Tokyo, Japan | 11th | 10,000 m | 32:29.12 | ||
| 1993 | World Championships | Stuttgart, Germany | 6th | 10,000 m | 31:30.60 | |
| 1994 | Helsinki, Finland | 2nd | 10,000 m | 31:32.82 | ||