Unionville is the name of some places in North America:
Canada Unionville, Ontario Unionville GO Station, a station in the GO Transit network located in the community South Unionville, a community in Markham, Ontario
United States Unionville, Connecticut Unionville, Georgia Unionville, Illinois (disambiguation) Unionville, Indiana Unionville, Iowa Unionville, Frederick County, Maryland Unionville, Michigan Unionville, Missouri Unionville, Nevada Unionville, New Jersey Unionville Vineyards, a winery in Unionville. Unionville, New York (disambiguation) (multiple) Unionville, North Carolina Unionville, Ashtabula County, Ohio; on the border with Lake County Unionville, Columbiana County, Ohio Unionville, Holmes County, Ohio Unionville, Morgan County, Ohio Unionville, Washington County, Ohio Unionville Center, Ohio Unionville, Pennsylvania (disambiguation) (multiple) Unionville, South Carolina, historic settlement now named Union, South Carolina Unionville, Tennessee Unionville, Utah, historic settlement now renamed Hoytsville, Utah Unionville, Virginia
See also Unienville, a French commune