Wallasey is a town in the Metropolitan Borough of Wirral, Merseyside, England. Within the boundaries of the historic county of Cheshire, it is at the mouth of the River Mersey, on the north-eastern corner of the Wirral Peninsula. At the 2011 Census, the population was 60,284.

The Metropolitan Borough of Wirral is a metropolitan borough of Merseyside, in North West England. It has a population of 322,453 (2022), and encompasses 62 square miles (161 km2) of the northern part of the Wirral Peninsula. Major settlements include Birkenhead, Wallasey, Bebington, Heswall, Hoylake and West Kirby. Wirral is England's westernmost metropolitan borough, faced by the city of Liverpool to the northeast over the River Mersey.