Konrad "Conny" Plank (3 May 1940 – 5 December 1987) was a German record producer and musician. His innovative work as a sound engineer and producer in Germany's krautrock and kosmische music scenes helped to shape postwar European popular music. Plank oversaw recordings such Neu!'s self-titled debut (1972), Kraftwerk's Autobahn (1974), and Harmonia's Deluxe (1975). He later produced for new wave acts such as Eurythmics and Ultravox.
As a musician, Plank is credited on albums by Cluster, Guru Guru, Kraan, Liliental and Os Mundi. He collaborated with Dieter Moebius on five Moebius & Plank studio albums recorded between 1979 and 1986. The Moebius & Plank sound foreshadowed techno and electronica and influenced many later musicians.