Klaus Mertens
Klaus Mertens is the name of the following people:
- Klaus Mertens (actor) (1929–2003), German actor
- Klaus Mertens (building historian) (1931–2014), German architectural historian and building researcher
- Klaus Mertens (singer) (* 1949), German singer (bass and bass baritone)
See also:
- Klaus Mertes (* 1954), German teacher, author and journalist
