| Sjønståfjell Tunnel | |
| Location: | Fauske, Nordland, Norway |
| Coordinates: | 67.1991°N 15.667°W |
| Start: | Storvika |
| End: | near Sjønstå |
| Opened: | 1956/1975 |
| Traffic: | Automotive |
The Sjønståfjell Tunnel (Norwegian: Sjønståfjelltunnelen) is a road tunnel that is part of Norwegian County Road 830 in the municipality of Fauske in Nordland county, Norway. It is located between Finneid in the town of Fauske and the village of Sulitjelma. This tunnel is part of a series of three tunnels on this road. The Grønnlifjell Tunnel and the Hårskolten Tunnel both lie to the west of this tunnel.
The 2827m (9,275feet) long tunnel was originally built in 1956 as part of an expansion of the Sulitjelma Line between Finneid and Sulitjelma. The railway line was closed and dismantled in 1972. The tunnel was rebuilt soon after when the old railway line was converted into a highway which opened in 1975.[1]