Kotz is a surname. Notable people with the surname include:
Brad Kotz, American lacrosse player
Dorothy Kotz, Australian politician
Eric Kotz, South Australian mariner and author
H. David Kotz, Inspector General of the U.S. Securities and Exchange Commission
John Kotz (basketball), American basketball player
John Kotz (politician), British Labour Party politician
Nick Kotz, American journalist, author, and historian
Richard Kotz, German Wehrmacht officer during Word War II
Samuel Kotz, engineering professor
Tadeusz Kotz, Polish pilot and fighter ace of World War II
