Kälviä is a former municipality of Finland. Kälviä was consolidated with the city of Kokkola on 2009-01-01. It is located in the province of Western Finland and is part of the Central Ostrobothnia region. The former municipality had a population of 4,475 (2003) and covered an area of 682.36 km² (263.46 mi²) of which 14.68 km² (5.67 mi²) was water. The population density was 6.6 inhabitants per square kilometer (17.1/mi²). The former municipality was unilingually Finnish.