|Genres||Post-punk, new wave|
|Years active||1979–1984, 1986–1989|
|Associated acts||Klaus Mit Foch|
|Past members||Kazimierz Sycz|
Klaus Mitffoch was a Polish rock group founded in 1979 in Wrocław by Lech Janerka, Krzysztof Pociecha and Kazimierz Sycz. Soon joined by Wiesław Mrozik and Marek Puchała (who replaced Sycz on drums), the band gained a large underground following. They recorded their first single Ogniowe Strzelby/Śmielej in 1983 and their debut album Klaus Mitffoch in 1984. It received several awards and is considered one of the most important albums in the history of Polish rock music.
The band disintegrated in 1984. Janerka went on to a long-term solo career; Pociecha collaborated with Janerka on two more albums. From 1986 to 1989 Mrozik and Puchała, joined by Paweł Chyliński (guitar/vocals), Jacek Fedorowicz (bass guitar) and Zbigniew Kapturski (guitar/vocals), continued to perform under the name 'Klaus Mit Foch'; this latter line-up released the album Mordoplan in 1988.
- Lech Janerka (bass guitar/vocals)
- Krzysztof Pociecha (guitar/backing vocals)
- Wiesław Mrozik (guitar/backing vocals)
- Marek Puchała (drums/backing vocals)
- Ogniowe Strzelby / Smielej (1983)
- Jezu jak się cieszę / O głowie (1983) 
- Siedzi / Tutaj wesoło (1984)
- Gnoiński, Leszek (2001). Encyklopedia Polskiego Rocka (in Polish). In Rock. pp. 285–286. ISBN 83-86365-08-0.
- "Klaus Mitffoch biography" (in Polish). RMF FM. Retrieved 2008-02-04.
- "info about the first album". discogs.com. Tonpress – SX-T40. Retrieved 16 July 2016.
- "info about Mordoplan album". discogs.com. Polskie Nagrania Muza – SX 2599. Retrieved 16 July 2016.
- "info about Smielej". discogs.com. Tonpress – S-472. Retrieved 16 July 2016.
- "info about item". discogs.com. Tonpress – S-475. Retrieved 16 July 2016.
- "info about Siedzi". discogs.com. Tonpress – S-522. Retrieved 16 July 2016.