| Country: | Thailand |
| Previous Election: | 1946 |
| Next Election: | 1952 |
| Seats For Election: | 99 of the 186 seats in the House of Representatives |
| Election Date: | 29 January 1948 |
| Turnout: | 29.50% (3.02pp) |
| Nopercentage: | yes |
| Noleader: | yes |
| Party1: | Independents |
| Seats1: | 99 |
| Last Election1: | 96 |
| Prime Minister | |
| Before Election: | Khuang Aphaiwong |
| After Election: | Khuang Aphaiwong |
General elections were held in Siam on 29 January 1948. Following the 1947 coup, the unicameral parliament elected in 1946 was abrogated. It was replaced by a bicameral parliament with a 100-seat appointed Senate and a 99-member House of Representatives.[1]
At the time there were no political parties,[2] so all candidates ran as independents. Voter turnout was 30%.[3]
In order to comply with the constitutional requirement of one member of the House of Representatives for every 150,000 citizens, supplementary elections were held in June 1949.[1]