Billy Graham Talagi is a Niuean politician and former Member of the Niue Assembly.

In 2014 he was made Minister of Natural Resources in the Cabinet of Toke Talagi.

[7] In 2019 he served as Acting Prime Minister while Toke Talagi was receiving medical treatment in New Zealand.

[1][8] In May 2018 Talagi was discharged without conviction after pleading guilty to assaulting MP Terry Coe outside the Niuean Assembly.

[9] He contested the common roll in the 2020 Niuean general election but failed to win a seat.