| Osbert de Rozario | |
| Full Name: | Osbert John de Rozario |
| Nationality: | Singaporean |
| Birth Date: | 25 June 1924 |
| Birth Place: | Selangor, British Malaya |
| Sport: | Field hockey |
| Club: | Police Sports Association, Singapore |
Osbert John de Rozario (25 June 1924 – 28 February 2022) was a Singaporean field hockey player. He competed in the men's tournament at the 1956 Summer Olympics.[1] De Rozario died in February 2022, at the age of 97.[2]