| Ezequiel Castillo | |
| Fullname: | Ezequiel Marcelo Castillo Montes |
| Birth Date: | 13 June 1967 |
| Birth Place: | Buenos Aires, Argentina |
| Height: | 1.76 m |
| Position: | Midfielder |
| Years1: | 1987–1988 |
| Years2: | 1989–1992 |
| Years3: | 1992–1995 |
| Years4: | 1995–1998 |
| Years5: | 1998–2000 |
| Years6: | 2007 |
| Clubs1: | Argentinos Juniors |
| Clubs2: | Español |
| Clubs3: | Tenerife |
| Clubs4: | Rayo Vallecano |
| Clubs5: | Badajoz |
| Clubs6: | Sportivo Patria |
| Caps2: | 56 |
| Caps3: | 96 |
| Caps4: | 107 |
| Caps5: | 62 |
| Totalcaps: | 321 |
| Goals2: | 2 |
| Goals3: | 8 |
| Goals4: | 9 |
| Goals5: | 4 |
| Totalgoals: | 23 |
Ezequiel Marcelo Castillo Montes (born 13 June 1967 in Buenos Aires) is an Argentine retired footballer who played as a midfielder.
After starting professionally with Argentinos Juniors, Castillo moved in Spain in January 1989, going on to spend the following 11 years in the country, with RCD Español, CD Tenerife, Rayo Vallecano and CD Badajoz – the latter in the second division – always as an important first-team member. He amassed totals of 224 games and 15 goals in La Liga.
In 2007, seven years after retiring, Castillo returned to active, with lowly Sportivo Patria in his native country (he had already been awarded Spanish citizenship).