Jokioinen (Swedish: Jockis) is a municipality of Finland.
It is located in the Tavastia Proper region. The municipality has a population of 4,888 (31 August 2024) and covers an area of 181.94 square kilometres (70.25 sq mi) of which 1.52 km2 (0.59 sq mi) is water. The population density is 27.09 inhabitants per square kilometre (70.2/sq mi). The municipality is unilingually Finnish.
A notable tourist attraction in the region is the Jokioinen Museum Railway.