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

• Charles Massi (1952–2010), Central African politician
• Elisabeth Massi Fritz, Swedish lawyer
• Emidio Massi (1922–2016), Italian politician
• Jeri Massi (born 1960), American author
• Nick Massi (1927–2000), American singer
• Riccardo Massi, Italian operatic tenor
• Robert Massi (born 1987), Swedish footballer
• Rodolfo Massi (born 1965), Italian cyclist
• Souad Massi (born 1972), Algerian singer
• Stelvio Massi (1929–2004), Italian film director
• Valentina Massi (born 1983), Italian model

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