Hana Merenea O'Regan ONZM (born 1973) is a Māori language advocate and academic in New Zealand.

[2] O'Regan later undertook doctoral studies at Auckland University of Technology, with Tania Ka'ai as her supervisor.

[6] In the early 1990s, O'Regan worked as a researcher for a number of organisation, including the Education Policy Division of Te Puni Kōkiri and Aoraki Consultant Services.

She returned to CPIT as Dean of Te Puna Wānaka, the new Faculty of Māori Studies, in 2006.

[2] In the 2024 New Year Honours, O'Regan was appointed an Officer of the New Zealand Order of Merit, for services to education.