| Year: | 1915 |
| Competition: | New South Wales Rugby Football League |
| Teams: | 8 |
| Count: | 1st |
| Mpcount: | 1st |
| Matches: | 56 |
| Points: | 1308 |
| Top Point Scorer: | Wally Messenger (73) |
| Top Try Scorer: | Frank Burge (20) |
| Prevseason Link: | 1914 NSWRFL season |
| Prevseason Year: | 1914 |
| Nextseason Link: | 1916 NSWRFL season |
| Nextseason Year: | 1916 |
The 1915 New South Wales Rugby Football League premiership was the eighth season of Sydney’s top-grade rugby league football club competition, Australia’s first. Eight teams from across the city contested during the season, with the Balmain club finishing on top of the ladder to claim the premiership.[1]
Even though World War I had broken out across Europe and many players were unavailable, there was a general consensus amongst the public that the rugby league premiership continue. On 8 May in good weather the first matches were played between the eventual top four clubs: In front of a record crowd of 13,000 Glebe defeated defending premiers Easts at the SCG, and at Wentworth Oval Balmain drew 11–all with Newtown.[2] Midway through the season, three clubs had clearly broken ahead of the others: Balmain, Glebe and South Sydney. With South Sydney falling away in the second half of the season, Balmain and Glebe became the two remaining contenders for the title, and they clashed with four rounds to play. In front of 20,000 people, the two clubs played out a memorable match at the Sydney Sports Ground, where Balmain eventually prevailed 12–2 on a cold, rainy day. Balmain were assured their first premiership without the need for a playoff after their close last-round win over South Sydney 7–4.
Balmain went through 1915 undefeated – a feat achieved by only five other teams since. They won the premiership in all three grades. Members of the Balmain first-grade premiership winning side included Bob Craig, Bill Schultz and E. Burnicle.
In 1915, the NSWRFL lost its first ever full-time Secretary Edward Larkin when he was killed in fighting at Gallipoli on 25 April.
The teams remained unchanged from the 1914 season.
| 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="Points for" | PF | width=20 abbr="Points against" | PA | width=20 abbr="Points difference" | PD | width=20 abbr="Points" | Pts | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Balmain | 14 | 12 | 2 | 0 | 232 | 71 | +161 | 26 | ||||||||||
| 2 | Glebe | 14 | 12 | 0 | 2 | 268 | 106 | +162 | 24 | ||||||||||
| 3 | Newtown | 14 | 9 | 1 | 4 | 208 | 119 | +89 | 19 | ||||||||||
| 4 | South Sydney | 14 | 8 | 1 | 5 | 157 | 94 | +63 | 17 | ||||||||||
| 5 | Eastern Suburbs | 14 | 6 | 0 | 8 | 180 | 109 | +71 | 12 | ||||||||||
| 6 | Annandale | 14 | 3 | 0 | 11 | 113 | 256 | -143 | 6 | ||||||||||
| 7 | Western Suburbs | 14 | 2 | 0 | 12 | 67 | 200 | -133 | 4 | ||||||||||
| 8 | North Sydney | 14 | 2 | 0 | 12 | 83 | 353 | -270 | 4 | ||||||||||