Jouni is a Finnish male first name. It is a variant of the Scandinavian version of the name Johannes, known as Jon, and has historically been popular especially in the northern regions of Finland, such as Peräpohjola and Lapland. In the Finnish calendar, Jouni’s name day is observed on March 29th. However, in the Orthodox calendar, the commemorative day associated with the name Jouni is the martyr Evgenios’ day on January 21st.

According to data from the Digital and Population Data Services Agency, by the end of 2019, 22,441 men were named Jouni in Finland. Over half of these individuals were born during the 1960s and 1970s.