Ugo Ventimiglia (died 23 December 1172) was an Italian cardinal. His name is listed also as Ottone. He was born in Ventimiglia. He was created Cardinal-Bishop of Palestrina by Pope Alexander III in the consistory celebrated in Sens in 1164 (or in 1165). Several catalogs of the bishops of Palestrina do not mention him because he does not appear among signatories of any papal bulls issued during his cardinalate.