Guillermo "Guille" Rubio Vergara (alternate spelling: Guillem) (born October 14, 1982 in Barcelona, Spain) is a Spanish professional basketball player.

After playing 15 years in Spain, Rubio joined Koroivos Amaliadas of the Greek Basket League in 2014.

The following season, he moved to VEF Rīga, and he became the captain of the team.

[3] On July 26, 2018, Rubio signed with Covirán Granada of the LEB Oro.

This biographical article relating to a Spanish basketball figure is a stub.