Samantha "Sammi" Davis (born 21 June 1964) is an English actress. She gained considerable praise for her performances in Mona Lisa (1986), as a teenage prostitute, and 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 American television series, Homefront (1991–1993).

From 1990 to 1993, Davis was married to director Kurt Voss. After taking a few years out of the film industry to raise her family, she returned to the screen in a cameo role on Lost, playing the mother of Dominic Monaghan's character. She moved back to Britain in Christmas 2008. On 21 June 2009, she married Simon Drew, a children's TV s