| Personal information | |
|---|---|
| Full name | Bret Geoffrey de Thier | 
| Born | 14 June 1945 Christchurch, New Zealand | 
| Sport | |
| Country | New Zealand | 
| Sport | Sailing | 
Bret Geoffrey de Thier (born 14 June 1945) is a New Zealand sailor. He competed in the Finn event at the 1972 Summer Olympics. [1]