Hernani may refer to:

• Hernani, Eastern Samar, a municipality in Eastern Samar, Philippines
• Hernani, Gipuzkoa, a town in Gipuzkoa, Basque Autonomous Community, Spain
• Hernani (drama), a Romantic drama by Victor Hugo
• Hernani CRE, a Spanish rugby union club

• Hernani Azevedo Júnior (born 1994), Brazilian association football player
• Hernâni Ferreira da Silva (1931-2001), Portuguese association football player
• Hernâni José da Rosa (born 1984), Brazilian association football player
• Hernâni Jorge Santos Fortes (born 1991), Portuguese association football player
• Hernâni Marques (born 1984), computational linguist and hacker
• Hernâni Neves (born 1963), Portuguese association football and beach soccer player
• Hernani Nogueira dos Santos (born 1976), Brazilian football player

• Ernani (disambiguation)