The Ontario Orioles were a minor league baseball team that operated in 1947 as part of the Class-C Sunset League.
They were based in Ontario, California and played at the Ontario Baseball Park.
The team was managed by Danny Reagan and finished their one season of existence with a 64–75 record.
The team was owned by former Major Leaguer Babe Dahlgren (per Jun/7/1947 UP-syndicated article in Pittsburgh Press, page 6).
This article about a baseball team in California is a stub.