Hirini is both a given name and surname. It is a Māori transliteration of the name Sydney or Sidney. Notable people with the name include:
Given name Hirini Matunga, New Zealand planning academic Hirini Melbourne (1949–2003), Māori composer, singer, university lecturer, poet and author Hirini Moko Mead (1927–2026), New Zealand anthropologist and historian Hirini Rawiri Taiwhanga (–1890), New Zealand politician Hirini Te Kani (died 1896), New Zealand tribal leader Hirini Te Rito Whaanga (1828–1905), New Zealand Mormon missionary Hirini Whaanga Christy (1883–1955), New Zealand Mormon leader
Surname Luther Hirini (born 1996), New Zealand rugby union player Sarah Hirini (born 1992), New Zealand rugby union player
See also