Irby () is a village on the Wirral Peninsula, in Merseyside, England. The village covers an area of 20 square kilometres. To the north of Irby lies the associated hamlet of Irby Hill. It is part of the Greasby, Frankby and Irby Ward of the Metropolitan Borough of Wirral and is within the parliamentary constituency of Wirral West. According to the 2001 census, Irby had a population of 6,110, By the time of the 2011 census a separate statistic for Irby was no longer maintained. However, the total population of Greasby, Frankby and Irby Ward was 13,991. History The name Irby (Iri býr) is of Viking origin, meaning "farmstead or settlement of the Irish". It is derived from the Old Norse words Íri (Irishman) and bȳ (a farmstead or settlement). Historically, the name has been spelt as Irreby (1096) and Ireby (1232). Other nearby towns and villages with the Viking "by" suffix in their name include Frankby, Greasby and Pensby. Although not mentioned in the Domesday Book, the land of the present day village was recorded as being granted to the Abbey of St Werburgh by Hugh Lupus in 1093. Irby Mill A reference to the existence of a mill at Irby was made in a rental agreement of 1431, whereby tenants were expected to "...grind at Irby Mill to the 16th measure." This referred to the miller receiving this amount in flour as a toll. This original wooden structure was replaced by a post mill in the early 18th century. After being disused since about 1878 and in a very dilapidated condition, the mill was demolished in 1898. Along with a similar structure in Burton, it was one of the last post mills of its kind on the Wirral. The demolition work was carried out by unskilled labour hired by the miller. They removed the brick base first, resulting in the whole structure becoming dangerously unsafe and crashing to the ground, narrowly avoiding injury or loss of life. The Irby Mill public house, which opened for business in 1980, stands adjacent to the site in a building formerly known as Irby Mill Cottage. Irby Hall Irby Hall was constructed in the early 17th century, with an entrance facade added in 1888. The hall was built on the site of an 11th-century moated manor and courthouse of St Werburgh's Abbey. The moat is now dry, but has a prominent outer