Kotiteollisuus (transl. Home Industry) is a Finnish hard rock/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 (The Crazy Old Geezer and Home Industry). The shortened name and current line-up was established in 1997.

Kotiteollisuus is said to combine furious heavy metal with Finnish sullenness. Subjects frequently touched upon in songs are the current state of the nation, religion and mankind in general. Kotiteollisuus is one of the most popular hard rock/metal bands in Finland, having produced one platinum and several gold-selling albums.

Members:
Jouni Hynynen (vocals, guitars)
Janne Hongisto (bass)
Jari Sinkkonen (drums)
Miitri Aaltonen (formerly a touring member, promoted to official fourth member in 2014)

Former members:
Tomi Sivenius (guitars)
Aki Virtanen (guitars)
Simo Jäkälä (vocals)