| Lamarque-Pontacq | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lamarque-Pontac (65).svg |
| Arrondissement: | Tarbes |
| Canton: | Ossun |
| Insee: | 65252 |
| Postal Code: | 65380 |
| Mayor: | Marc Begorre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Tarbes-Lourdes-Pyrénées |
| Coordinates: | 43.1781°N -0.1133°W |
| Elevation M: | 350 |
| Elevation Min M: | 363 |
| Elevation Max M: | 510 |
| Area Km2: | 10.85 |
Lamarque-Pontacq (in French pronounced as /lamaʁk pɔ̃tak/; Occitan (post 1500);: Era Marca) is a commune in the Hautes-Pyrénées department in south-western France.