Alavieska is a municipality of Finland.

It is located in the province of Oulu and is part of the Pohjois-Pohjanmaa region. The municipality has a population of 2902 and covers an area of 253,01 kmē of which 1,62 kmē is water. The population density is 11,527 inhabitants per kmē.

The municipality is unilingually Finnish.

See also: Municipalities of Oulu