| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Guillermo•Squella Echavarría | 
| Used name | Guillermo•Squella | 
| Born | 18 March 1923 in Santiago, Santiago Metropolitan (CHI) | 
| Died | 11 December 2010 in Bogotá, Bogotá (COL) | 
| NOC |   Chile | 
Guillermo Squella had the following podium finishes at major championships: 1st in the 1967 Pan American Games dressage team (with Patricio Escudero and the non-Olympian Mario Díaz), 2nd in the 1951 Pan American Games Three-Day Event team (with Hernán Vigil, Rolando Mosqueira, and Mario Leuenberg), 3rd in the 1967 Pan American Games dressage individual.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Equestrian Dressage (Equestrian) |  CHI | 
Guillermo Squella | |||
| Individual, Open (Olympic) | Colchaguino | =16 | ||||
| Team, Open (Olympic) | Colchaguino / Chile | 6 |