| 1977 New South Wales Rugby Football League | |
|---|---|
| Duration | March 19 – September 24, 1977 |
| Teams | 12 |
| Premiers |  St. George (14th title) |
| Minor premiers |  Parramatta (1st title) |
| Matches played | 139 |
| Points scored | 4346 |
| Attendance | 1,440,765 |
| Top points scorer(s) | Mick Cronin (225) |
| Rothmans Medal | Mick Cronin |
| Top try-scorer(s) |  Russel Gartner (17) |
The 1977 NSWRFL season was the 70th season of Sydney's professional rugby league football competition, the New South Wales Rugby Football League premiership. Twelve clubs, including six of 1908's foundation teams and another six from around Sydney competed for the J. J. Giltinan Shield and WD & HO Wills Cup during the season, which culminated in a grand final between the St. George and Parramatta clubs. NSWRFL teams also competed for the 1977 Amco Cup.