Hamman is a surname. Notable people with the surname include:

• Adalbert Hamman (1910–2000), French Franciscan priest
• Bob Hamman (born 1938), American professional bridge player
• Edouard Hamman (1819–1888), Belgian painter
• Jared Hamman (born 1982)
• John Hamman (1927–2000)
• Louis Virgil Hamman (1877–1946), American medical researcher
  • Hamman-Rich syndrome
  • Hamman's sign
  • Hamman's syndrome
• Mary Hamman (1907–1984)
• Petra Hamman (born 1946)
• Phillip Hamman (c. 1753 – 1832)
• Shane Hamman (born 1972), American weightlifter