| Season: | 1938–39 |
| Competition: | LFF Lyga |
| Winners: | LGSF Kaunas |
| Matches: | 49 |
| Total Goals: | 181 |
| Prevseason: | 1937–38 |
| Nextseason: | 1939–40 |
The 1938–39 LFF Lyga was the 18th season of the LFF Lyga football competition in Lithuania. It was contested by 8 teams, and LGSF Kaunas won the championship.