| Sainte-Gemme-Martaillac | |
| Commune Status: | Commune |
| Arrondissement: | Marmande |
| Canton: | Les Forêts de Gascogne |
| Insee: | 47244 |
| Postal Code: | 47250 |
| Mayor: | Christine Merlin-Chabot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Coteaux et Landes de Gascogne |
| Coordinates: | 44.3672°N 0.1531°W |
| Elevation M: | 80 |
| Elevation Min M: | 58 |
| Elevation Max M: | 156 |
| Area Km2: | 14 |
Sainte-Gemme-Martaillac (in French pronounced as /sɛ̃t ʒɛm maʁtajak/; Occitan (post 1500);: Senta Gema e Martalhac) is a commune in the Lot-et-Garonne department in south-western France.[2]