Crossley Tatui is a Niuean politician and member of the Niue Assembly.

Tatui is a graduate of the University of the South Pacific, with a degree in Public Administration and Accounting.

[1] He worked as a public servant, initially as a clerk and then in a number of senior roles including Director of Parliamentary Services and Head of External Affairs.

[3] On June 11 2020 Tatui was appointed Minister of Finance and Infrastructure in the Cabinet of Dalton Tagelagi.

[4] As Minister of Finance he oversaw Niue's ratification of the PACER Plus regional trade agreement.