Ivan Bierhanzl (born 3 March 1958)[1] is a Czech musician and record producer.
[2] Early in his career, he played with Jaroslav Unger's Doktor Prostěradlo Band.
In 2001, after Milan Hlavsa's death, he joined The Plastic People of the Universe along with Eva Turnová, the second bass player, initially as a guest musician, later as a full member.
[4] He is featured on their reunion album Líně s tebou spím / Lazy Love (2001).
He has been a member of the contemporary classical music ensemble Agon Orchestra [cs] (originally Agon Ensemble) since the 1980s[2] and also plays with the experimental band DekadentFabrik [cs][5] and the traditional group Malá česká muzika Jiřího Pospíšila.