Sasha Regan (née Leask) is an English theatre director. In 1998, she founded the Union Theatre, a small fringe venue on the premises of a disused paper warehouse on Union Street in the London borough of Southwark. She has been in charge of the theatre ever since.
As a director, Regan has won critical praise for a number of productions including Sweeney Todd, The Mikado, HMS Pinafore, The Pajama Game, Cabaret and Annie Get Your Gun.
In 2007, Regan was awarded the Stage One Bursary for New Producers by The Society of London Theatre. This was followed by more success when the Union won in the category of Up-and-Coming Theatre at the 2008 Empty Space Peter Brook Awards.
Regan is a mother of two.