Önder M.Uğurlu H.H.2025-04-102025-04-102017http://hdl.handle.net/20.500.14701/48081In this paper, using the classifications of timelike and spacelike ruled surfaces, we define and study the Mannheim offsets of spacelike ruled surfaces in Minkowski 3-space. We give the conditions for offset surfaces to be developable. © 2017, Shiraz University.Article10.1007/s40995-017-0335-5