Keitele is a municipality of Finland. It is part of the Northern Savonia region. The municipality has a population of 2,035 and covers an area of 578.30 square kilometres of which 96.59 km2 is water. The population density is 4.21 inhabitants per square kilometre. Neighbour municipalities are Pielavesi, Pihtipudas, Tervo, Vesanto and Viitasaari. Despite its name, the municipality is not located by the lake Keitele.