| António Antunes | |
| Country: | Portugal |
| Birth Date: | 6 February 1962 |
| Birth Place: | Lisbon, Portugal |
| Grandmaster (1994) | |
| Peakrating: | 2545 (January 1996) |
| Fideid: | 1900013 |
António Carlos Marques Antunes (6 February 1962, Lisbon) is a Portuguese chess player. He earned the grandmaster (GM) title in 1994[1] and International Master (IM) title in 1985.[2] He is the first GM of Portugal. He retired from competitive chess in 2000.[3]
Amongst players he ranks, as of 2022, 969th best of all time and second-best Portuguese chess player ever.[4]
| POR-chT(Portugal) | 1997 | 2510 | 8.0 | |
| Benasque op(Benasque) | 1996 | 2540 | 6.0 | |
| Benasque op(Benasque) | 1995 | 2530 | 4.5 | |
| Capablanca mem-B(Matanzas) | 1994 | 2465 | 9.5 | |
| Portuguese Masters(Portugal) | 1994 | 2465 | 7.0 | |
| Lisbon BNU op(Lisbon) | 1992 | 2465 | 6.0 | |
| Valencia(Valencia) | 1989 | 2445 | 6.0 | |
| Benidorm op(Benidorm) | 1988 | 2390 | 1.5 | |
| Reggio Emilia 8687-B(Reggio Emilia) | 1986 | 2410 | 2.0 |