Cadogan () is a name of Welsh origin and is a variant of the name Cadwgan (). It may refer to: People Cadogan (surname) Earl Cadogan, a peerage of Great Britain Places Cadogan, Alberta, Canada Cadogan Township, Armstrong County, Pennsylvania, United States Chelsea, London Cadogan Hall Cadogan Place Cadogan Hotel, famous for the arrest of playwright Oscar Wilde Cadogan Square Other Cadogen West, a victim in the Sherlock Holmes story "The Adventure of the Bruce-Partington Plans" by Sir Arthur Conan Doyle Cadogan Estates, a property company Sir Cadogan, a magical portrait in the Harry Potter series Cadogan pot, a style of teapot produced by the Rockingham Pottery Cadogan Guides, a series of travel books Cadogan Chess, a publisher of chess books, now known as Everyman Chess