Ko Tākuta Hana Merenea O’Regan ONZM tētahi toa reo Māori whakahirahira, he mātanga kura wānanga hoki i whānau mai ki Te Whanganui a Tara. Ka whāia e ia te mātauranga ki Te Herenga Waka, i reira ka riro i a ia tana tohu paetahi i te mātai Māori me te mātai tōrangapū i te tau 1993. Nōna e whai tonu ana i te ara o te mātauranga, ka oti i a Hana ana ako paerua ki Ōtākou Whakaihu Waka, me te aha, i te tau 1998 whakawhiwhia ai ia ki tana tohu paerua. Nō muri mai ka whakawhiwhia ia ki tana tohu kairangi ki Te Wānanga Aronui o Tāmaki Makau Rau i te tau 2017.

I te nuku o tana aramahi, kua nui ō Hana tūranga, pēnei i te kairangahau, te kaituruki me te kaituhi. Ko ia tētahi o ngā kanohi kitea i ngā mahi whakatairanga i te reo Māori, ā, nō te tau 2003 noho ai ia ki Te Taura Whiri i te Reo Māori. Waihoki, kua noho ia ki ngā tini taumata kōrero, pēnei i te Taumata Whiriwhiri Haki mō ngā pōtitake whakatau haki o Aotearoa. Nō te tau 2021 tohua ai ia kia noho ki te Taraipiunara o Waitangi. 

Ko te nuinga o ā Hana tuhituhi e hāngai ana ki ngā kōrero tuku iho me ngā pūrākau o Kāi Tahu, e whakaatu nei i tōna manawaroa ki te whakarauora me te whakamenomeno atu i te ahurea me te hītōria Māori mā āna tuhituhinga.

Dr. Hana Merenea O'Regan ONZM is a prominent te reo Māori advocate and academic who was born in Wellington. She pursued her education at Victoria University, where she obtained a BA in Māori studies and political science in 1993. Continuing her academic journey, O'Regan completed postgraduate studies at the University of Otago, earning a master's degree in 1998. Later, she obtained a PhD from Auckland University of Technology in 2017.

Throughout her career, O'Regan has held various roles, including researcher, tutor, and writer. She has been actively involved in promoting the Māori language, serving on the Māori Language Commission since 2003. In addition, she has contributed to numerous panels, including the Flag Consideration Panel for the New Zealand flag referendums. In 2021 she was appointed to the Waitangi Tribunal.

O'Regan's written works primarily focus on Kāi Tahu tribal stories and histories, showcasing her dedication to preserving and sharing Māori culture and heritage through literature.