Belisario is an Italian and Spanish masculine given name.[1] Notable people with the given name include:
- Belisario Acquaviva (c. 1464–1528), Italian nobleman and writer
- Belisario Agulla (born 1988), Argentine rugby union player
- Belisario Albán Mestanza (c. 1853–1925), Ecuadorian lawyer
- Belisario Porras Barahona (1856–1942), Panamanian journalist and politician
- Belisario Betancur (1923–2018), Colombian politician
- Belisario Corenzio (c. 1558 – 1643), Greek-Italian painter
- Belisario Domínguez (1863–1913), Mexican physician and politician
- Belisario Mattera, Italian musician and mandolin virtuoso
- Belisario Salinas (1833–1893), Bolivian lawyer, teacher, and politician
- Belisario Sosa (1846–1933), Peruvian medical doctor and politician
- Belisario Suárez (1833–1910), Peruvian colonel and politician
- Belisario Velasco (1936–2023), Chilean politician and lawyer
- Belisario Villacís (1899-?), Ecuadorian long-distance runner