Terri-Lynn Williams-Davidson (Haida: Gid7ahl-Gudsllaay Lalaxaaygans) is a Canadian indigenous lawyer, artist, activist and author and a member of the Raven Clan from the Haida Nation. As a lawyer, Williams-Davidson specializes in aboriginal-environmental law, having represented the Haida Nation at all levels of court since 1996 and notably participating in the litigation of the Haida Nation's TFL39 Case to protect the old-growth forests of Haida Gwaii, a case that effectively altered the government's stance on the consultation and accommodation of Aboriginal Rights.