'''Waiapu''' is a name used in the East Coast of the North Island of New Zealand, and may refer to:
* Waiapu River, a river flowing from the Raukumara Range to Rangitukia in the East Coast * Waiapu Valley, the catchment area for Waiapu River and its tributaries * Waiapu (New Zealand electorate), a former electorate in the Gisborne/East Coast region of New Zealand from 1893 to 1908 * Waiapu Ward, a Ward of the Gisborne District * Diocese of Waiapu, a diocese of the Anglican Church approximately covering the Gisborne and Hawke's Bay regions * Waiapu County, one of the former counties of New Zealand
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