Selwyn College, Cambridge (formally Selwyn College in the University of Cambridge) is a constituent college of the University of Cambridge in the United Kingdom. The college was founded in 1882 by the Selwyn Memorial Committee in memory of George Augustus Selwyn (1809–1878), the first Bishop of New Zealand (1841–1868), and subsequently Bishop of Lichfield (1868–1878). It consists of three main courts built of stone and brick (Old Court, Ann's Court, and Cripps Court) along with several secondary buildings, including adjacent townhouses and lodges serving as student hostels on Grange Road, West Road and Sidgwick Avenue. The college has some 60 Fellows and 110 non-academic staff.

In 2019, Selwyn was ranked eighth on the Tompkins Table of Cambridge colleges in order of undergraduates' performances in examinations, but was first in 2008. The college was ranked 16th out of 30 in an assessment of college wealth conducted by the student newspaper Varsity in November 2006. Selwyn's sister college at the University of Oxford is Keble College.