Tärnaby is a locality situated in Storuman Municipality, Lappland, Västerbotten County, Sweden with 482 inhabitants in 2010.

[citation needed] 18 km further north in the Parish of Tärnaby is the village Hemavan, a ski resort, with an airport and start point of the Kungsleden trail.

[citation needed] Tärna is the latest permanently settled parish in Sweden, with the oldest new construction built in 1824 at Lövlund.

[3] In the early 1950s, after World War II, tourism in Tärnaby began to develop, with the construction of several hotels and ski lifts.

In the 1960s, hydroelectric power plants were built, flooding farms and agricultural lands, with the landowners being compensated by the municipality for this intrusion.