Fabiani is a surname. Notable people with the surname include:
- Alessia Fabiani (born 1976), Italian model and television personality
- Fabio Fabiani (born 1974), Italian racing driver
- Francesco de Fabiani (born 1993), Italian cross country skier
- Joel Fabiani (born 1936), American actor
- Harish Fabiani, Madrid-based, Non-Resident Indian businessman
- Jean-Louis Fabiani (born 1951), French sociologist, professor of sociology and social anthropology
- Linda Fabiani (born 1956), Scottish politician
- Mark D. Fabiani (born 1957), American political strategist and crisis management expert
- Max Fabiani (1865–1962), Italian architect
- Raúl Fabiani (born 1984), Equatoguinean footballer
- Roland Fabiani (born 1971), Scottish footballer