The Ottawa Valley Curling Association (OVCA) is a regional association for the sport of curling in the Ottawa valley region of Eastern Ontario and Western Quebec.
The OVCA was founded in 1957. It has operated a number of bonspiels, most notably the City of Ottawa Men's Bonspiel which occurred every March. It was one of the largest bonspiels in the world, and had been running annually since 1956. In 2010, the open division had 137 teams. All OVCA bonspiels were suspended in 2020 due to the COVID pandemic. As of March 2024, only the Goldline/OVCA Little Rocks Championships and the Brokerlink/OVCA U21 Superspiel have been reinstated.