Iisakki Vihtori Kosola (10 July 1884 – 14 December 1936) was a Finnish politician, activist and a farmer who served as the leader of the fascist[6] pro-German[7] and anti-communist[8] Lapua Movement, and later as the leader of the Patriotic People's Movement political party in Finland.

He took part in the abortive Mäntsälä Rebellion of 1932 that ended with the dissolution and banning of the Lapua Movement and the brief imprisonment of Kosola.

Contemporary accounts describe Kosola after being freed from jail as a tired and sick man who drank alcohol to deal with the stress.

Kosola's first son, Niilo, bought the farm and was eventually elected as an MP and briefly as a government minister.

Kosola had a sobriquet Kosolini after his charismatic and vivid style of speech similar to Benito Mussolini.