马丁·倍海姆（德语：Martin Behaim，也作Martinho da Boémia、Martin Bohemus、Martin Behaim von Schwarzbach或Martinus de Boemia，1459年10月6日－1507年7月29日），全名马丁·冯·倍海姆（Martin von Behaim），德国宇宙学家、天文学家、地理学家，服务于葡萄牙国王若昂二世的探险家，他设计制作了世界上现存最早地球仪。

Martin Behaim (6 October 1459 – 29 July 1507), also known as Martin von Behaim and by various forms of Martin of Bohemia (Latin:Martinus Bohemus and de Boëmia; Portuguese:Martinho da Boémia; German:Martin Behaim von Schwarzbach) was a German mariner, artist, cosmographer, astronomer, philosopher, geographer, and explorer in service to King John II. His maps are sometimes held to have been influential on the Age of Discovery but he is now best known for his Erdapfel, the world's oldest surviving globe, which he produced for the Imperial City of Nuremberg.