Justman is a surname. Notable people with the surname include:
Chanoch Gad Justman (1883–1942), Polish Hasidic Rabbi Pinchas Menachem Justman (1848–1910), Polish Hasidic Rabbe Robert H. Justman (1926–2008), American television producer, director and production manager Seth Justman (born 1951), American keyboard player Zuzana Justman (born 1931), Czech documentary filmmaker and writer
See also Mount Justman, mountain of Antarctica