| Poste Montagnais Airport | |
| Nativename: | Poste Montagnais (Mile 134) Airport |
| Tc: | CSF3 |
| Type: | Private |
| Operator: | Hydro-Québec |
| Location: | Poste Montagnais, Quebec |
| Timezone: | EST |
| Summer: | EDT |
| Elevation-F: | 1,988 |
| Coordinates: | 51.8881°N -65.7144°W |
| Pushpin Map: | Canada Quebec#Canada |
| Pushpin Label: | CSF3 |
| Pushpin Map Caption: | Location in Quebec |
| R1-Number: | 17/35 |
| R1-Length-F: | 4,436 |
| R1-Surface: | Gravel |
| Footnotes: | Source: Canada Flight Supplement |
Poste Montagnais Airport, also known as Poste Montagnais (Mile 134) Airport, is located at Poste Montagnais, Quebec, Canada. The airport serves Hydro-Québec's Montagnais electrical substation in the Côte-Nord region near the Labrador border, along a series of 735kV transmission lines connecting to the Churchill Falls hydroelectric project.