| Gustavo Wilches | |
| Full Name: | Gustavo Wilches Tumbia |
| Birth Place: | Facatativá, Colombia |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1987–1991 |
| Proyears2: | 1992–1993 |
| Proteam2: | Gaseosas Glacial |
| Proyears3: | 1994 |
| Proteam3: | Jaisa–Banco popular–Philips |
| Majorwins: | Vuelta a Colombia (1990) Clásico RCN (1990) |
Gustavo Wilches Tumbia (born 23 August 1962) is a Colombian former road cyclist. He notably won the Vuelta a Colombia and the Clásico RCN in 1990. He also rode in the 1988 and 1990 Vuelta a España.[1] His brothers Pablo, Ricardo and Marcos were also cyclists.
In 2001, Wilches was arrested and charged for attempting to smuggle 40 capsules of heroin through the El Dorado International Airport.[2]