| Rubén Castillo | |
| Fullname: | Rubén Castillo |
| Birth Date: | 1985 4, df=y |
| Birth Place: | Santiago, Chile |
| Height: | 1.75 m |
| Position: | Right-back |
| Years1: | 2003–2010 |
| Clubs1: | Cobreloa |
| Years2: | 2007 |
| Clubs2: | → Lota Schwager (loan) |
| Years3: | 2011 |
| Pcupdate: | 31 January 2010 |
Rubén Castillo (born 24 April 1985) is a Chilean former footballer.
His last club was Arturo Fernández Vial.