Liminka () is a municipality in the Northern Ostrobothnia region in Finland. Liminka is located about south of Oulu.
The municipality has a population of () and covers an area of of which is water. The population density is . The neighbouring municipalities are Kempele, Lumijoki, Muhos, Oulunsalo, Siikajoki, Siikalatva, Tyrnävä and Vaala.
The Liminganlahti Bay is a notable bird sanctuary.
Liminka was founded in 1477. According to folklore, the name Liminka comes from the fictional giant, Limmi.
In the 1980s, meat potatoes, barley rieskas and sweet porridge were named Liminka's local traditional dishes.