The Cheyne Baronetcy, of Leagart in the parish of Fetlar and North Yell in the County of Zetland, is a title in the Baronetage of the United Kingdom. It was created on 20 July 1908 for the surgeon and bacteriologist Sir Watson Cheyne. As of 2010 the title is held by his great-grandson, the fourth Baronet, who succeeded his father in 2007.
William Watson Cheyne (1920–1970), second son of the second Baronet, was a brigadier in the Queen's Own Highlanders, who married Laurel Audrey Hutchison, daughter of Lt Gen Sir Balfour Hutchison
The heir apparent is the present holder's son Louis Richard Patrick Lister Cheyne (born 1971).