Hartz is a surname, and may refer to:
Harris Hartz (born 1947), U.S. federal judge
Harry Hartz (1896—1974), U.S. racecar driver
Jim Hartz (born 1940), U.S. television personality
Louis Hartz (1919—1986), U.S. political scientist
Nikolaj Hartz (1867—1937), Danish geologist and botanist
Peter Hartz (born 1941), German business executive (Hartz concept)
William J. Hartz, U.S. composer and lyricist
The corporate name may refer to:
Hartz Mountain Industries, a real estate and pet product conglomerate
