Susan Webb Cushman (March 17, 1822 – May 10, 1859) was a Boston, Massachusetts-born American actress, the younger sister of established actress Charlotte Cushman. Following a failed marriage to Nelson Meriman, after which he left her destitute with a child, she followed Charlotte's advice to pursue an acting career with her. The sisters became famous for performing as Romeo (Charlotte) and Juliet (Susan). In 1848, Susan married James Sheridan Muspratt, and retired from the stage, living in Liverpool until her death in 1859, aged 37. The couple had three children.