Maddin is a surname. Notable people with the surname include:
Edward Maddin (1852-1925), Canadian-American Navy sailor Guy Maddin (born 1956), Canadian screenwriter James William Maddin (1874-1961), Canadian lawyer and politician Jim Maddin (born 1947/1948), Canadian politician Thomas L. Maddin (1826-1908), American physician
See also Madden (surname) Madin (surname)