| NSWRFL Amco Cup | |
|---|---|
| Tournament details | |
| Dates | 27 March - 17 August 1977 |
| Teams | 37 |
| Venue(s) | 9 (in 8 host cities) |
| Final positions | |
| Champions |  Western Suburbs (1st title) |
| Runners-up |  Eastern Suburbs |
| Tournament statistics | |
| Matches played | 36 |
The 1977 Amco Cup was the 4th 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, the NZRL, Western Australia and the Northern Territory.
A total of 37 teams from across Australia and New Zealand played 36 matches in a straight knock-out format, with the matches being held midweek during the premiership season.