The High Sheriff of Lancashire is an ancient office, now largely ceremonial, granted to Lancashire, a county in North West England. High Shrievalties are the oldest secular titles under the Crown, in England and Wales. The High Sheriff of Lancashire is the representative of the monarch in the county, and is the "Keeper of The King's Peace" in the county, executing judgements of the High Court through an Under Sheriff.

Lancashire is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to the west. The largest settlement is Blackpool.