| Year: | 1920 |
| Competition: | New South Wales Rugby Football League |
| Teams: | 9 |
| Count: | 5th |
| Mpcount: | 5th |
| Matches: | 60 |
| Points: | 1981 |
| Top Point Scorer: | Frank Burge (110) |
| Top Try Scorer: | Gordon Wright (18) |
| Prevseason Link: | 1919 NSWRFL season |
| Prevseason Year: | 1919 |
| Nextseason Link: | 1921 NSWRFL season |
| Nextseason Year: | 1921 |
The 1920 New South Wales Rugby Football League premiership was the thirteenth season of Sydney's professional rugby league football club competition, Australia's first. The introduction of a Sydney University side saw nine teams from across the city contest during the season. Balmain were crowned premiers by virtue of finishing the season on top of the League.[1]
Due to the 1920 Great Britain Lions tour, from rounds 5 to 8, several players in the NSWRFL were selected to play matches for Metropolis (Sydney), New South Wales and Australia.
In a round 7 game between Glebe and University Frank Burge scored eight tries which remains the standing record for the most tries by an individual in a NSWRL/NRL premiership match. Arthur Oxford set the pace in goal kicking, scoring 29 goals in three games. He also took the record of most goals in succession (23) which would stand until 1978.
The NSWRFL ran the City Cup competition for the second half of the season.
The Balmain Tigers again dominated the season, while University's first year was a disappointment: the Students conceded a whopping 118 tries in thirteen games for a record “tries against” average of 9.08 per match that has not been beaten since.[2] Balmain played consistently and defensively throughout the season except for a slip-up 13–30 loss to Eastern Suburbs in Round 10. Holding a seven-point lead on the premiership ladder with three rounds left to play secured their fifth premiership in six years. The final three rounds were left unplayed and no Finals were contested.
With the addition of Sydney University's team, the League was again at nine sides. At the end of the season however, Annandale exited the League after eleven seasons,[3] having won only fifteen and drawn four of 126 games since 1912.[4]
| width=20 abbr="Position×" | width=175 | Team | width=20 abbr="Played" | Pld | width=20 abbr="Won" | W | width=20 abbr="Drawn" | D | width=20 abbr="Lost" | L | width=20 abbr="Bye" | B | width=20 abbr="Points for" | PF | width=20 abbr="Points against" | PA | width=20 abbr="Points difference" | PD | width=20 abbr="Points" | Pts | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Balmain | 13 | 11 | 1 | 1 | 2 | 287 | 114 | +173 | 27 | |||||||||||
| 2 | South Sydney | 13 | 8 | 0 | 5 | 2 | 258 | 149 | +109 | 20 | |||||||||||
| 3 | Glebe | 13 | 8 | 0 | 5 | 2 | 268 | 166 | +102 | 20 | |||||||||||
| 4 | Western Suburbs | 14 | 8 | 1 | 5 | 1 | 309 | 141 | +168 | 19 | |||||||||||
| 5 | North Sydney | 13 | 7 | 0 | 6 | 2 | 237 | 151 | +86 | 18 | |||||||||||
| 6 | Eastern Suburbs | 14 | 8 | 0 | 6 | 1 | 254 | 175 | +79 | 18 | |||||||||||
| 7 | Newtown | 14 | 8 | 0 | 6 | 1 | 208 | 203 | +5 | 18 | |||||||||||
| 8 | Sydney University | 13 | 1 | 0 | 12 | 2 | 101 | 498 | -397 | 6 | |||||||||||
| 9 | Annandale | 13 | 0 | 0 | 13 | 2 | 59 | 384 | -325 | 4 | |||||||||||