Selwyn may refer to:
People and fictional characters Selwyn (name), including lists of people and fictional characters with the surname or given name Selwyn (singer), Australian R&B singer Selwyn Pretorius (born 1982)
Places Australia Selwyn, Queensland, a ghost town Selwyn County, New South Wales, a cadastral division Selwyn Range (Australia), a range of highlands in Queensland Selwyn's Rock, glaciated pavement in Inman Valley, South Australia Selwyn Snow Resort, a ski resort in New South Wales
Canada Selwyn, Ontario, a township Selwyn Range (British Columbia), a subrange of the Canadian Rockies near Mount Robson Selwyn Mountains, a large mountain range in Yukon and the Northwest Territories
New Zealand Selwyn District, a territorial authority district in Canterbury Selwyn (electorate), a parliamentary electorate in Canterbury Selwyn River, a river in Canterbury Selwyn, New Zealand, a settlement in Canterbury
United States Selwyn, West Virginia, an unincorporated community Selwyn (Mechanicsville, Virginia), a historic home
Schools Selwyn College, Cambridge, one of the University of Cambridge colleges, UK Selwyn College, Auckland, a co-educational high school in Auckland, New Zealand Selwyn College, Otago, a residential college of the University of Otago, New Zealand Selwyn House School, private independent boys' school in Westmount, Quebec, Canada Selwyn School, a private school in Denton, Texas, US
Entertainment Harris and Selwyn Theaters, twin theaters in Chicago, Illinois, United States Todd Haimes Theatre, New York City, originally called the Selwyn Theatre Oh No It's Selwyn Froggitt, a British sitcom known as Selwyn in its final series