Luciane Buchanan (born 18 July 1993) is a New Zealand actress. She is known for her starring role in the Netflix action thriller series The Night Agent from 2023 until 2025. She has also featured in Filthy Rich (2016–2017) and The New Legends of Monkey (2018–2020).

Buchanan was born and raised in Herne Bay, Auckland. She is of Tongan and Scottish descent. Her family could speak Tongan, but her mother insisted on her completely acquiring English due to socioeconomic pressures surrounding them as Pacific Islanders.

Her first appearance was in the 2011 telemovie Billy. She did not take any formal acting classes but rather practiced on the spot of many film sets; she later took formal acting classes at the Auckland Performing Arts Centre (TAPAC), including with Miranda Harcourt. She graduated with a Bachelor of Arts in Drama and Psychology from the University of Auckland in 2017.

She made a short autobiographical film Lea Tupu'anga / Mother Tongue in 2024.

In June of 2026, it was announced Buchanan would return as Rose Larkin in the final season of The Night Agent.