1979 Amco Cup
The 1979 Amco Cup was the 6th edition of the NSWRFL Midweek Cup, a NSWRFL-organised national club Rugby League tournament between the leading clubs and representative teams from the NSWRFL, the BRL, the CRL, the QRL and the NZRL.
A total of 16 teams from across Australia and New Zealand played 27 matches in a round-robin group format with the winners of each group advancing to a knockout stage, with the matches being held midweek during the premiership season.
Group A
| Club | Played | Won | Lost | Drawn | For | Against | Diff. | Points |
| Combined Brisbane | 3 | 3 | 0 | 0 | 43 | 28 | 15 | 6 |
| Eastern Suburbs | 3 | 2 | 0 | 1 | 39 | 30 | 9 | 4 |
| St George | 3 | 1 | 0 | 2 | 23 | 29 | -6 | 2 |
| Manly-Warringah | 3 | 0 | 0 | 3 | 21 | 39 | -18 | 0 |
Group B
| Club | Played | Won | Lost | Drawn | For | Against | Diff. | Points |
| Cronulla-Sutherland | 3 | 2 | 0 | 1 | 62 | 36 | 26 | 4 |
| Penrith | 3 | 2 | 0 | 1 | 40 | 33 | 7 | 4 |
| Canterbury-Bankstown | 3 | 2 | 0 | 1 | 38 | 35 | 3 | 4 |
| Auckland | 3 | 0 | 0 | 3 | 18 | 54 | -36 | 0 |
Group C
| Club | Played | Won | Lost | Drawn | For | Against | Diff. | Points |
| QLD Country | 3 | 3 | 0 | 0 | 46 | 28 | 18 | 6 |
| Parramatta | 3 | 1 | 0 | 2 | 66 | 43 | 23 | 2 |
| North Sydney | 3 | 1 | 0 | 2 | 50 | 69 | -19 | 2 |
| Newtown | 3 | 1 | 0 | 2 | 42 | 64 | -22 | 2 |
Group D
| Club | Played | Won | Lost | Drawn | For | Against | Diff. | Points |
| South Sydney | 3 | 2 | 0 | 1 | 37 | 22 | 15 | 4 |
| Balmain | 3 | 2 | 0 | 1 | 41 | 36 | 5 | 4 |
| Western Suburbs | 3 | 1 | 0 | 2 | 40 | 34 | 6 | 2 |
| NSW Country | 3 | 1 | 0 | 2 | 35 | 61 | -26 | 2 |