Mário Aníbal Dias Sampaio Ramos (born 25 March 1972 in Nova Sintra, Angola) is a former Portuguese decathlete.
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| Representing Portugal | |||||
| 1997 | World Championships | Athens, Greece | 18th | Decathlon | |
| 1998 | European Indoor Championships | Valencia, Spain | 11th | Heptathlon | |
| 2000 | European Indoor Championships | Ghent, Belgium | 5th | Heptathlon | 5930 pts iNR |
| Olympic Games | Sydney, Australia | 12th | Decathlon | 8136 pts NR | |
| 2001 | World Indoor Championships | Lisbon, Portugal | 7th | Heptathlon | |
| World Championships | Edmonton, Canada | 12th | Decathlon | ||
| 2002 | European Indoor Championships | Vienna, Austria | 9th | Heptathlon | |