| Competition: | Mestaruussarja |
| Season: | 1934 |
| Winners: | HPS Helsinki |
| Relegated: | TPS Turku UL Turku |
| League Topscorer: | Olof Strömsten, HIFK Helsinki (15) |
| Prevseason: | 1933 |
| Nextseason: | 1935 |
The 1934 season was the fifth completed season of Finnish Football League Championship, known as the Mestaruussarja.
The 1934 Mestaruussarja was contested by 8 teams, with HPS Helsinki winning the championship which was also known as the A-sarja. TPS Turku and UL Turku were relegated to the second tier which was known as the B-sarja.[1]