Colizzi is an Italian surname. Notable people with the surname include:
Chiara Colizzi (born 1968), Italian voice actress Giuseppe Colizzi (1925–1978), Italian film director Johann Andreas Kauchlitz Colizzi (1742–1808), Dutch musician Pino Colizzi (1937–2026), Italian actor and voice actor Vittorio Colizzi (born 1949), Italian virologist