Sinahemana Hekau is a Niuean lawyer and politician.

[1] Hekau trained as a lawyer at the University of the South Pacific.

[2] She later completed a master of Laws at Victoria University of Wellington.

[2] She worked as a lawyer for the Niuean government before entering private practice.

[3] She was subsequently appointed Member Assisting the Minister to Premier Dalton Tagelagi.