Ongaro is an Italian surname. Notable people with the surname include:
Alberto Ongaro (1925–2018), Italian journalist, writer and comics writer Alex Ongaro (born 1963), Canadian cyclist Easton Ongaro (born 1998), Canadian soccer player Fabio Ongaro (born 1977), Italian rugby player Ornella Ongaro (born 1990), French motorcycle racer Raimundo Ongaro (1924–2016), Argentine union leader Ross Ongaro (born 1959), Canadian soccer player Saúl Ongaro (1916–2004), Argentine footballer
See also Francesco Dall'Ongaro (1808–1873), Italian writer, poet and dramatist