Stephen Porter may refer to:

• Stephen Porter (director) (1925–2013), American stage and television director, producer, set designer, and writer
• Stephen Porter (professor), professor of oral medicine at the Eastman Dental Institute of University College London
• Stephen G. Porter (1869–1930), Republican member of the U.S. House of Representatives from Pennsylvania
• Steve Porter (singer) (1864–1946), American pioneer recording artist
• Steve Porter (producer) (born c. 1978), American house music DJ and producer
• Steve Porter (wheelchair rugby) (born 1969), Australian Paralympic wheelchair rugby union player
• Steven Porter (Canadian politician) (born 1945), member of the Legislative Assembly of New Brunswick
• Stephen C. Porter (1934–2015), professor of geological sciences and director of the Quaternary Research Center, University of Washington