Tarquinio is both an Italian masculine given name and a surname. Notable people with the name include:

Given name Tarquinio Angiolin (1928–2012), Italian rower Tarquinio Ligustri (1564–), Italian painter Tarquinio Merula (1595–1665), Italian composer, organist, and violinist Tarquinio Provini (1933–2005), Italian motorcycle road racer Octávio Tarquínio de Sousa (1889–1959), Brazilian historian and author

Surname Lucio Tarquinio (1949–2025), Italian politician Marco Tarquinio (born 1958), Italian journalist and politician Sergio Tarquinio (1925–2026), Italian painter and comics artist

See also

Tarquin Tarquinius