Sascha Konietzko (born June 21, 1961) is a member of industrial rock band KMFDM, having founded the group with Udo Sturm in 1984. He is the only member of KMFDM to appear on every album.

He left Hamburg for Chicago in 1990, before relocating to Seattle in 1995.

In some of his lyrics, Konietzko jokingly purports himself to be the father of industrial rock, and has, for unknown reasons, recently begun referring to himself as Käpt'n K.