Harrow is a community located in the town of Essex, Essex County, Ontario, Canada. It lies about 40 kilometers southeast of Windsor, Ontario. The town is situated along scenic County Road 20 and is known for its wineries, agricultural heritage, and historic sites. Harrow was originally called Munger's Corners and was renamed in 1857 after the prestigious Harrow School in London. It has a rich history connected to the distillery operations of Hiram Walker and features local attractions such as the Colio Winery and the John R. Park Homestead. Harrow is part of the local government as the fourth ward within the town of Essex.