Aldunate is a surname. Notable people with the surname include:
First surname Arturo Aldunate Phillips (1902–1985), Chilean poet, father of Aldunate Bezanilla Carlos Aldunate Errázuriz (1880–1959), Chilean lawyer and politician, father of the Aldunate Lyon siblings Carlos Aldunate Solar (1856–1931), Chilean politician, father of the Aldunate Errázuriz siblings Carlos Aldunate Lyon (1916–2018), Chilean Catholic Jesuit priest Carmen Aldunate Salas (1940–2026), Chilean painter and illustrator Elena Aldunate Bezanilla (1925–2005), Chilean journalist and writer (1871–1946), Chilean physician, father of the Aldunate Phillips siblings Fernando Aldunate Errázuriz (1895–1990), Chilean politician and diplomat José Aldunate Lyon (1917–2019), Chilean Jesuit priest and human rights activist José Santiago Aldunate y Toro (1796–1864), Chilean Army officer and politician, lost the 1856 presidential election, father of Aldunate y Avaria Luis Aldunate Carrera (1842–1908), Chilean lawyer and politician, father of Aldunate Echeverría Luis Pastor Aldunate Echeverría (1872–1948), Chilean politician and diplomat (1815–1904), Chilean soldier and engineer (Mercado Central de Santiago), father of the Aldunate Bascuñán siblings Paul Aldunate Phillips (1909–?), Chilean lawyer and politician Raúl Aldunate Phillips (1906–1979), Chilean writer, politician, and soldier Roberto Aldunate León (1898–1980), Chilean politician and diplomat Santiago Aldunate Bascuñán (1857–1918), Chilean diplomat and politician
Compound surname José Antonio Martínez de Aldunate (1731–1811), Chilean bishop and politician
Second surname Fernando Errázuriz Aldunate (1777–1841), Chilean politician Gregorio Amunátegui Aldunate (1830–1899), Chilean lawyer and politician Juan Carlos Silva Aldunate (born 1976), Chilean lawyer and politician Luz Bulnes Aldunate (1927–2019), Chilean jurist Miguel Luis Amunátegui Aldunate (1828–1888), Chilean historian and politician Raquel Barros Aldunate (1919–2014), Chilean folklorist Sergio Valech Aldunate (1927–2010), Chilean prelate of the Roman Catholic Church (Valech Report) Wilson Ferreira Aldunate (1919–1988), Uruguayan politician
See also Urraúl Bajo, Spanish municipality where the village of is located