Suonenjoki (Finnish pronunciation: [ˈsuo̯nenˌjoki]; literally means "vein's river") is a town and municipality of Finland.

It is located in the Northern Savonia region, 50 kilometres (31 mi) southwest of Kuopio.

[8] The neighbouring municipalities of Suonenjoki are Rautalampi to the west, Tervo to the northwest, Kuopio to the north, Leppävirta to the east, and Pieksämäki to the south on the Southern Savonia side.

[9] Near the city center is the 10-kilometer-long and at most a couple of kilometers wide scenic Lintharju, which is also part of the European Union's Natura 2000 conservation program.

Many foreigners, mainly from Ukraine and Russia, come to Suonenjoki in summer to work on strawberry farms.