Altrincham is a market town situated in the Metropolitan Borough of Trafford within Greater Manchester, England. It is located south of the River Mersey and lies approximately 8 miles (13 km) south-west of Manchester, 3 miles (5 km) south-west of Sale, and 10 miles (16 km) east of Warrington.
According to the 2021 census, the built-up area of Altrincham had a population of 49,680. The town serves as a residential and commercial hub within its metropolitan borough.