| Birth Date: | 14 March 1976 |
| Birth Place: | Valladolid, Spain |
| Weight: | 205lbs |
| Ru Position: | Flanker, Number 8 |
| Clubs1: | El Salvador Rugby |
| Repyears1: | 1998-2008 |
| Repcaps1: | 49 |
| Reppoints1: | 15 |
Alfonso Mata Suárez (born Valladolid, 14 March 1976) is a Spanish rugby union player. He plays as a flanker and number 8.
His first international cap was during a match against Portugal, at Murrayfield, on December 2, 1998. He was also part of the 1999 Rugby World Cup roster, where he played all the three matches. His last international cap was during a match against Romania, at Madrid, on February 23, 2008.