The best selling domestic album in 1977 in Portugal was AMÁLIA NO LUSO by AMÁLIA RODRIGUES.
| Rank | Artist | Album | Released |
| 1 | AMÁLIA RODRIGUES | AMÁLIA NO LUSO | 1977 |
| 2 | BEATRIZ COSTA | BEATRIZ COSTA | 1977 |
| 3 | AMÁLIA RODRIGUES | CANTIGAS NUMA LÍNGUA ANTIGA | 1977 |
Source: Música & Som