Galletti is a surname. Notable people with the surname include:
- Alessio Galletti, Italian racing cyclist;
- Arthur Galletti (1877–1967), British Indian civil servant;
- Carlo Galletti, Italian footballer;
- Filippo Maria Galletti, Italian painter;
- Giacomo Galletti, Bishop of Alessano;
- Gian Luca Galletti, Italian politician;
- Giovanna Galletti, Italian actress;
- Giulio Galletti, Bishop of Alessano;
- Johann Georg August Galletti – German historian and geographer;
- Luciano Galletti, Argentine retired footballer;
- Paolo Galletti, Italian swimmer;
- Pietro Luigi Galletti, Italian historian;
- Rubén Horacio Galletti, Argentine retired footballer.