Christian Nyby was an American television and film director and editor. As an editor, he had seventeen feature film credits from 1943 to 1952, including The Big Sleep (1946) and Red River (1948). From 1953 to 1975 he was a prolific director of episodes in many television series, including Gunsmoke and Wagon Train. As a feature film director, he is likely best known for The Thing from Another World (1951).
Nyby was the father of Christian I. Nyby II, a prolific television director in his own right, and Kirkland Royal Nyby, who while studying law appeared in a few TV acting roles in the early 1970s as Kirk Nyby, before embarking on a legal career in California, finishing as Los Angeles Superior Court Commissioner.