Thornton Manor is a large house in the village of Thornton Hough, Wirral, Merseyside, England. It is recorded in the National Heritage List for England as a designated Grade II* listed building. The house was first built in the middle of the 19th century and has been altered and extended in a number of phases since. From 1888 to the end of the 20th century the house was occupied by the Viscounts Leverhulme. It is now used as a conference and events centre, and a venue for weddings.