Waiotahe (for a time, Waiotahi) is a beach, settlement and rural community in the Ōpōtiki District and Bay of Plenty Region of New Zealand's North Island, near the mouth and lowermost stretch of the Waiotahe River.

It includes a beach that attracts swimmers, surfers and anglers during the summer months, and river mouths that people fish from year-round.

The beach is more dangerous during low tide due to stronger rips, but has natural hazards in all conditions.

[5] The town's official name reverted from Waiotahi back to the original Māori name Waiotahe in August 2015, following a decision by Land Information Minister Louise Upston, upheld by the New Zealand Geographic Board.

[6] In July 2013, a couple in their 60s were attacked and held captive in their Waiotahe home by a former soldier who had spent the previous night sleeping rough near the town hall.

[9] The first case of Mycoplasma bovis in Bay of Plenty was recorded in a farm in Waiotahe in January 2020.

Before the 2023 census, the statistical area was called Waiotahi and had a smaller boundary, covering 141.78 km2 (54.74 sq mi).

[15] Kayaker Lisa Carrington was raised in the valley and went to the local school, where both of her parents are teachers.