Sloane Ranger refers to a stereotype in the United Kingdom of young, upper class or upper-middle-class people who share distinctive and common lifestyle traits. The term is a punning portmanteau of "Sloane Square", a location in Chelsea, London famed for the wealth of residents and frequenters, and the television Westerns character The Lone Ranger. 

The term was originally popularised by the British writers Peter York and Ann Barr in the book Style Wars (1980), followed by The Official Sloane Ranger Handbook (1982) and its companion The Official Sloane Ranger Diary. 

The exemplar female Sloane Ranger was considered to be Lady Diana Spencer before marrying the Prince of Wales, when she was a member of the aristocratic Spencer family.  Considered typical of SRs was patriotism and traditionalism, and a belief in the values of upper class and upper-middle class culture, confidence in themselves and their given places in the world, a fondness for life in the countryside, country sports in particular, philistinism and anti-intellectualism.