Hanns Martin Schleyer (1915–1977) was an influential German manager, employer, and industry representative.
Schleyer may also refer to:
Waltrude Schleyer, (1916–2008), widow of Hanns Martin Schleyer Johann Martin Schleyer (1831–1912), Catholic priest who invented the constructed language Volapük Paul von Ragué Schleyer (1930–2014), American chemist