Phyllis Edith Mary Blythe (13 February 1912 – 31 October 2001), known professionally as Jenny Laird, was a British stage, film and television actress.

She worked briefly as an advertising copywriter while studying acting with teachers such as the Central School's legendary Elsie Fogerty and in 1937 she made her repertory debut at the Brixton Theatre in A Bill of Divorcement.

What the actor-manager sought for the little underground playhouse in London's Great Newport Street was an audience "eager for intelligent and entertaining plays".

As Ellie, in the revival by Californian John Fernald (whom Laird married in 1947) of Shaw's Heartbreak House (1950), she revealed, one critic wrote, "an enchanting combination of youth and firmness.

Her shapely legs and green eyes figured prominently in West End plays by Ivor Novello, N. C. Hunter and Robert Morley.