The 2017 Ontario Men's and Women's Singles Championships were held in Kitchener at Heritage Greens Lawn Bowling Club on Saturday, August 12 and Sunday, August 13.
Gold: Michelle MacKay of Highland Park
Silver: Heather Coomba, Milton
Bronze: Helen Snare, Richmond Hill
Gold: Mike Wagner of Heritage Greens
Silver: Bob Bester, Hanover
Bronze: Zach Steele, Nepean