| Luis Preti | |
| Fullname: | Luis Humberto Preti Maldonado |
| Birth Date: | 2 January 1983 |
| Birth Place: | Quito, Ecuador |
| Position: | Goalkeeper |
| Youthyears1: | 1997 - 2003 |
| Youthclubs1: | LDU Quito |
| Years1: | 2002 - 2008 |
| Clubs1: | LDU Quito |
| Caps1: | 11 |
| Goals1: | 0 |
| Years2: | 2008 - 2011 |
| Clubs2: | Universidad Católica |
| Caps2: | 66 |
| Goals2: | 0 |
| Totalcaps: | 77 |
| Totalgoals: | 0 |
| Club-Update: | November 26, 2011 |
Luis Humberto Preti Maldonado (born January 2, 1983) is a retired Ecuadorian football goalkeeper.
He has spent the majority of his career at LDU Quito as a product of its youth system. Although he began making senior squad appearances in 2002, he saw little playing time as a back-up goalie. He was the second back-up for the squad when it won the 2008 Copa Libertadores. Following the Copa Libertadores, he was traded to another Quito club, Universidad Católica, who at the time were in the top-tier Serie A. He did not see playing time again in 2008. In 2009, he became the starting goalkeeper for the club, which had been relegated from the previous season.