Antonio Silio
Antonio Fabián Silio Alaguire is a retired long-distance runner from Argentina. He competed in three editions of the World Championships in Athletics, racing in the 10,000 metres. His best result was 8th in 1993. He also finished in the top six of three World Half Marathon Championships, finishing second in the inaugural World Half Marathon Championships in 1992.
He won the bronze medal in the men's 5000 metres at the 1991 Pan American Games in Havana, Cuba. He finished second in the 10000 metres at the 1994 World Cup, held at Crystal Palace, London, and won the 1995 edition of the Hamburg Marathon, clocking 2:09:57.
Prior to his career in track and road running, he competed in cross country and won medals at the South American Cross Country Championships. He won a silver in 1987, the gold in 1988 and a bronze in 1989.
Personal bests
| Distance | Time | Location | Date |
| 3000 m | 7:50.15 | Jerez, Spain | 3 September 1990 |
| 5000 m | 13:19.64 | Rome, Italy | 17 July 1991 |
| 10,000 m | 27:38.72 | Brussels, Belgium | 3 September 1993 |
| 10K run | 27:52 | Copenhagen, Denmark | 19 August 1990 |
| 15K run | 42:59 | Uster, Switzerland | 27 September 1998 |
| Half marathon | 1:00:45 | Uster, Switzerland | 27 September 1998 |
| 25K run | 1:16:13 | Ōtsu, Japan | 3 March 1996 |
| 30K run | 1:31:30 | Ōtsu, Japan | 3 March 1996 |
| Marathon | 2:09:57 | Hamburg, Germany | 30 April 1995 |