Nottinghamians RFC is a rugby unionclub that plays in Holme Pierrepont in Nottingham, England. The club started out as Old Nottinghamians, a club for former pupils of Nottingham High School. The club's ground, on Adbolton Lane next to the National Watersports Centre, is still owned by the Old Nottinghamians Sports Club. In the summer the ground is used by Nottingham Cricket Club. Since 1971, the club has been known simply as "Nottinghamians", and it is no longer a requirement that members should be old boys of the High School.
Nottinghamians RFC currently runs two men's open age sides and one men's veteran side. Owing to the connections with the High School it was never deemed appropriate for the club to run junior sides.