Sammi Davis ( Sammi Davis-Voss) is a British actress. She gained considerable praise for her performance in Ken Russell's The Rainbow (1989). She also had significant roles in Mike Hodges' A Prayer For The Dying and John Boorman's Hope And Glory (both 1987) as well as a leading role in the Emmy Award-winning U. S. television series, Homefront (1991 - 1993).

After taking a few years out of the film industry to raise her children, she returned to the screen in a cameo on Lost, playing the mother of Dominic Monaghan's character.