Tahlia Tupaea (born 1 June 1997) is an Australian-New Zealand professional basketball player.

Tupaea became the second youngest debutant in WNBL history in October 2012 at age 15 and 133 days.

She continued in the SEABL in 2017 and 2018 with the Sydney Uni Sparks before joining the USC Rip City in the QBL in 2019.

[9][10] In 2022, Tupaea joined the Northern Kāhu for the inaugural season of New Zealand's Tauihi Basketball Aotearoa (TBA), where she won league MVP.

[13] She sustained a shoulder injury early in the season,[14] as the Kāhu went on to win the 2023 TBA championship.