Ballynahinch Rugby Club is an Irish rugby union club based in the County Down town of Ballynahinch. Founded in 1954, the club is affiliated to the Ulster Branch of the Irish Rugby Football Union.

The first team plays Senior rugby union in the All-Ireland League, Division 1A and the club also fields 4 Junior standard adult teams, a Women's Team in the Ulster Premiership, Youth Teams (male and female) competing at U18, U16, U14, U12 and a thriving mini-rugby section.