O'Sullivan is a Unincorporated area located in Ontario.

• Latitude: 43° 46' North   (decimal: 43.7666999)
• Longitude: 79° 19' West   (decimal: -79.3166999)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Urban Community
• Canadian Province/Territory: Ontario
• GPS Coordinate Locator Map: O'Sullivan Lat/Long