Margaret Ruth Kidder, known professionally as Margot Kidder, was a Canadian-American actress whose career spanned five decades. Her accolades include three Canadian Screen Awards and one Daytime Emmy Award. Though she appeared in an array of film and television roles, Kidder is best known for her performance as Lois Lane in the Superman film series, appearing in all four original films.

Lois Lane is a fictional character portrayed by Canadian-born actress Margot Kidder in the Warner Bros. Superman film series produced by Ilya and Alexander Salkind, and is an adaption of the original comic book character, Lois Lane. Kidder played Lois Lane opposite Christopher Reeve in Superman (1978), Superman II (1980), Superman III (1983), and Superman IV: The Quest for Peace (1987). The role proved to be Kidder's most notable, catapulting her to international fame, and this iteration of Lois Lane has been considered one of the most iconic love interests in superhero films.