North Baddesley is a large village and civil parish in Hampshire, England. It is situated 3 mi east of the town of Romsey and 6 mi north of Southampton. It occupies an area of approximately 9.15 km2, and is home to a population of just over 10,000 people, reducing to 7,000 at the 2011 Census. It is located in the Test Valley; a river famous for trout fishing.