| Sergio Ubillús | |
| Fullname: | Sergio Hernán Ubillús Segura |
| Birth Date: | 1 January 1980 |
| Height: | 1.71 m |
| Years1: | 2000–2001 |
| Years2: | 2002 |
| Clubs2: | Juan Aurich |
| Years3: | 2003 |
| Clubs3: | Cienciano |
| Years4: | 2003 |
| Clubs4: | Sport Boys |
| Years5: | 2004–2006 |
| Years6: | 2007–2008 |
| Clubs6: | Sport Ancash |
| Caps6: | 65 |
| Goals6: | 2 |
| Years7: | 2009 |
| Caps7: | 14 |
| Goals7: | 1 |
| Years8: | 2009–2010 |
| Clubs8: | Total Chalaco |
| Caps8: | 40 |
| Goals8: | 0 |
| Years9: | 2011– |
| Clubs9: | Cobresol |
| Caps9: | 46 |
| Goals9: | 0 |
| Pcupdate: | 27 August 2012 |
Sergio Hernán Ubillús Segura (born 1 January 1980) is a Peruvian footballer who plays as a left back for Cobresol in the Torneo Descentralizado.
Sergio Ubillús began his senior career in the Torneo Descentralizado with Universitario de Deportes in the 2000 season playing under manager Roberto Challe.[1] [2] He stayed with Universitario only until the next season.[1]