Megan Williams may refer to:

Megan Williams case, Megan Williams, American woman who was held against her will by 6 people who kidnapped tortured and raped her. Megan Williams (actress) (1956–2000), Australian actress and singer Megan Williams (artist) (born 1956), American contemporary artist Megan Williams (author) (born 1984), Canadian author Megan Williams-Stewart (born 1987), American figure skater Megan Williams, fictional protagonist of My Little Pony