The 1970 Brisbane Rugby League season was the 62nd season of the Brisbane Rugby League premiership. Eight teams from across Brisbane competed for the premiership, which culminated in Fortitude Valley defeating Northern Suburbs 13–11 in the grand final, ending Valleys' 13-year premiership drought. Southern Suburbs' Graeme Atherton was named the Rothmans Medalist (Best and Fairest) - the first Southern Suburbs player to win the award.
| Team | Pld | W | D | L | PF | PA | PD | Pts | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Past Brothers | 21 | 16 | 0 | 5 | 404 | 265 | +139 | 32 | |
| 2 | Northern Suburbs | 21 | 14 | 2 | 5 | 418 | 233 | +185 | 30 | |
| 3 | Southern Suburbs | 21 | 13 | 0 | 8 | 401 | 337 | +64 | 26 | |
| 4 | Fortitude Valley | 21 | 12 | 1 | 8 | 378 | 299 | +79 | 25 | |
| 5 | Western Suburbs | 21 | 12 | 0 | 9 | 358 | 278 | +80 | 24 | |
| 6 | Eastern Suburbs | 21 | 7 | 0 | 14 | 304 | 295 | +9 | 14 | |
| 7 | Redcliffe | 21 | 5 | 1 | 15 | 251 | 402 | -151 | 11 | |
| 8 | Wynnum-Manly | 21 | 3 | 0 | 18 | 257 | 562 | -305 | 6 |
| Home | Score | Away | Match Information | ||||
|---|---|---|---|---|---|---|---|
| Date and Time | Venue | Referee | Crowd | ||||
| Semi-finals | |||||||
| Fortitude Valley | 41-9 | Southern Suburbs | 29 August 1970 | Lang Park | Henry Albert | ||
| Northern Suburbs | 12-4 | Past Brothers | 30 August 1970 | Lang Park | Ron Mison | 25,000 | |
| Preliminary Final | |||||||
| Fortitude Valley | 15-7 | Past Brothers | 6 September 1970 | Lang Park | Bob Ward | 17,392 | |
| Grand Final | |||||||
| Fortitude Valley | 13-11 | Northern Suburbs | 12 September 1970 | Lang Park | Bob Ward | 30,000 | |