| Lochieu | |
| Arrondissement: | Belley |
| Canton: | Plateau d'Hauteville |
| Commune: | Arvière-en-Valromey |
| Insee: | 01218 |
| Postal Code: | 01260 |
| Coordinates: | 45.9306°N 5.7278°W |
| Elevation M: | 600 |
| Elevation Min M: | 479 |
| Elevation Max M: | 1426 |
| Area Km2: | 7.07 |
| Population: | 82 |
| Population Date: | 2021 |
| Population Footnotes: | [1] |
Lochieu (in French pronounced as /lɔʃjø/) is a former commune in the Ain department in eastern France. On 1 January 2019, it was merged into the new commune Arvière-en-Valromey.[2]