| Peter O'Brien | |
| Fullname: | Peter O'Brien |
| Birth Date: | 1928 3, df=y |
| Birth Place: | Sydney, New South Wales, Australia |
| Death Place: | Sydney, New South Wales, Australia |
| Club1: | North Sydney |
| Year1start: | 1949 |
| Year1end: | 55 |
| Appearances1: | 103 |
| Tries1: | 77 |
| Goals1: | 0 |
| Fieldgoals1: | 0 |
| Points1: | 231 |
| Source: | [1] |
Peter O'Brien (1928-2016) was an Australian rugby league footballer who played in the 1940s and 1950s. He played in the NSWRFL premiership for North Sydney as a winger.
O'Brien began his first grade career in 1949 and in 1952 was the season's leading try scorer and equaled Cec Blinkhorn’s club record of 20 tries in the main premiership competition.
O'Brien was a member of the North's teams in the 1950s where the club made the preliminary finals in 1952 and 1953 but lost to South Sydney and the semi-finals in 1954 where they lost to St. George.
O'Brien retired at the end of the 1955 season and remains the club's third highest try scorer.
After retiring, O'Brien became an administrator at Norths for many years. He died on 13 November 2016.[2]