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

• Antonio del Massaro, nicknamed il Pastura (1450–1516), Italian painter
• Ashley Massaro (1979–2019), American wrestler, valet and general manager
• Bentinho Massaro (born 1988/1989), Dutch alleged cult founder
• Daniele Massaro (born 1961), Italian football player
• Davide Massaro (born 1998) Italian football player
• Domingo Massaro (1927–?), Chilean football player and referee
• Dominic W. Massaro, Professor of Psychology and Computer Engineering at the University of California, Santa Cruz
• Francesco Massaro (born 1935), Italian director and screenwriter
• John Massaro, music director for Blues in the Night with BTT
• John Massaro (guitarist), guitarist for the 1980s band Kid Lightning
• John R. Massaro (born 1930), 8th Sergeant Major of the US Marine Corps
• Laura Massaro, English squash player
• Mike Massaro, racing analyst at ESPN for the NASCAR Sprint Cup Series
• Nicola Massaro, Italian painter of the late-Baroque period
• Paulo Massaro (born 1981), football player
• Roberto Massaro (born 1983), Italian football player
• Ryan Massaro or Amos Lee (born 1977), American singer-songwriter
• Sylvio Massaro, vocalist in Vanishing Point, an Australian pop group

• Massaro House, U.S. residence inspired by designs of a never-constructed project conceived by the architect Frank Lloyd Wright
• Masari
• Masaru
• Masoro (disambiguation)
• Massarah
• Massari
• Massaria
• Massarosa
• Masserano
• Mazaro