Leask may refer to:
Places
Leask, Saskatchewan, a village in Canada
Rural Municipality of Leask No. 464, in Canada
Leask Airport, adjacent to the village
People
Ada Leask (1899–1987), Irish historian and antiquary
Clan Leask, a Lowland Scottish clan
Derek Leask (born 1948), New Zealand diplomat
Henry Leask (1913–2004), British Army officer
Julie Leask, Australian social scientist
Kenneth Leask (1896–1974), British officer of the Royal Air Force
Laurie Leask (1912–1981), Australian rules footballer
Marilyn Leask (born 1950), Australian professor of education
Michael Leask (born 1990), Scottish cricketer
Nigel Leask (born 1958), British academic publisher
Ranald Leask, Scottish public relations and media manager
Rob Leask (born 1971), Canadian-German ice hockey coach
William Keith Leask (1857–1925), Scottish writer and a classics lecturer
John Leask Lumley (1930–2015), American professor of mechanical engineering and aerospace engineering
Other uses
Leask v Commonwealth, a High Court of Australia case that discussed the role of proportionality in the Australian Constitution