| Club: | Heart of Midlothian |
| Season: | 1942–43 |
| Manager: | David McLean |
| Stadium: | Tynecastle Park |
| League: | Southern League |
| League Result: | 7th |
| Cup1 Result: | Round 1 |
| Cup2 Result: | Group Stage |
| League Topscorer: | |
| Season Topscorer: | |
| Prevseason: | 1941–42 |
| Nextseason: | 1943–44 |
During the 1942–43 season Hearts competed in the Southern League, the Summer Cup, the Southern League Cup and the East of Scotland Shield.
See main article: Rosebery Charity Cup.
See main article: East of Scotland Shield.
See main article: Southern League Cup (Scotland) 1942–43.
See main article: Southern Football League (Scotland) 1942–43.