Kotiteollisuus is a Finnish hard rock and heavy metal band that was formed in 1991 in Lappeenranta.

The band released its first demo tape in 1993 under the name "Hullu ukko ja Kotiteollisuus" ('Crazy Old Fogey and Cottage Industry').

Subjects frequently touched upon in songs are the current state of the nation, religion and mankind in general.

Kotiteollisuus is undoubtedly one of the most popular metal bands in Finland, having produced one platinum and several gold-selling albums and winning Emma-awards in 2003 and 2005 for best metal record (Helvetistä itään)[1] and best DVD (Kotiteollisuus DVD)[2] respectively.

In March 2014, Miitri Aaltonen, who had been playing guitar at Kotiteollisuus's gigs for years, was named an official member of the band.