Clan Leask is a Scottish clan with origins in Aberdeenshire. The Leask family held lands in the region, including the estate of Leask. The clan’s history can be traced back to the medieval period, and they were involved in various conflicts and alliances. Notable figures from Clan Leask include individuals who have made contributions in various fields. One notable figure is Sir John Leask of that Ilk, who served as a prominent judge and diplomat during the 15th century. He held positions of influence and contributed to the administration of justice in Scotland.