This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "Baseball Ontario" – news · newspapers · books · scholar · JSTOR (January 2022)

Ontario Baseball Association
Official website

Sport	Baseball
Jurisdiction	Ontario
Abbreviation	Baseball Ontario
Founded	1918 (1918)
Headquarters	Cambridge
Location	Ontario, Canada
President	Ed Quinlan
Sponsor	Baseball Canada
baseballontario.com

Baseball Ontario, officially known as the Ontario Baseball Association (OBA), is the provincial governing body for baseball in Ontario. The Ontario Baseball Association was founded under the name "Ontario Baseball Amateur Association" which was organized at a meeting held in Hamilton at the Central YMCA on Saturday, May 4, 1918. In 1938, the name was changed to "Ontario Baseball Association", and in 1982, the organization was incorporated as "Ontario Baseball Association, Inc". Baseball Ontario currently has its headquarters in Cambridge, Ontario.^[1]^{[non-primary source needed]}

In 2013, Baseball Ontario was named Province of the Year by Baseball Canada due, in large part to the eight medals won by Ontario teams at National Championships. Ontario medaled in all seven tournaments, winning gold at the Bantam Girls, Bantam Boys, Midget, Junior, Senior Women's and Senior Men's tournaments in addition to a silver medal at the Baseball Canada Cup and a bronze at the Senior Men's tournament.^{[citation needed]}