The M. O'Neil Co. was a regional department store chain based in Akron, Ohio, United States. O'Neil's dominated the Akron and Canton retail markets. Founded in 1877, the store grew to several locations in northeastern Ohio. By the late 1980's, it was owned by May Department Stores, and in 1989 May merged it with its Cleveland division to form May Company Ohio, which was subsequently merged into its Pittsburgh division, Kaufmann's, in 1993. May Department Stores was purchased by Federated Department Stores in 2005, who merged all of its regional chains into Macy's in 2006.