Waterlooville is a town in Hampshire, England approx 8 miles north of Portsmouth.
The town has a population itself of about 10,000 and is surrounded by Purbrook, Blendworth, Cowplain, Lovedean, Clanfield, Catherington, Crookhorn, Denmead, Hambledon, Horndean and Widley. It forms part of the South Hampshire conurbation. The old A3 London to Portsmouth road still goes through the town.
The town is twinned with Maurepas, Yvelines in France.