Pelkosenniemi (Inari Sami: Pelkosnjargâ) is a municipality of Finland.

[1] The population density is 0.5 inhabitants per square kilometre (1.3/sq mi).

Neighbour municipalities are Kemijärvi, Rovaniemi, Salla, Savukoski and Sodankylä.

The municipality is unilingually Finnish and in 2000 was the last remaining municipality in Finland to have its entire population consist of native speakers of Finnish.

Pelkosenniemi hosts a popular mosquito swatting competition.