The hair, cut from his head after he died in exile in 1821 on the Atlantic island of St Helena, was bought by an unnamed London collector.
Bidders vied for about 40 items of Napoleon memorabilia that sold for almost $100,000.
The items belonged to descendants of a British officer stationed on St Helena.
Denzil Ibbetson served during Napoleon’s imprisonment on the remote island, a British colony, from 1815 to 1821.
Mr Ibbetson’s collection was brought to New Zealand in 1864 by his son and remained in the family, stored in a suitcase, until the sale.