NapierPronunciation: /ˈneɪpɪə/Definition of Napier a seaport on Hawke Bay, in the North Island, New Zealand; population 55,359 (2006). Originally a whaling port, the town was named after the British general and colonial administrator Sir Charles Napier (1809–54). Napier in other Oxford dictionaries Definition of Napier in the US English dictionary