Moana Nui-a-Kiwa Hinemoa Whaanga (née Manley; 28 October 1935 – 15 November 2017) was a New Zealand swimmer and beauty pageant winner.

[3] He was the grandson of Surgeon General William Manley who was awarded the Victoria Cross for his actions at the Battle of Gate Pā during the New Zealand wars.

In September 1943, she presented a bouquet to Eleanor Roosevelt at the Auckland Town Hall during the latter's visit to New Zealand.

[3] Manley was educated at Epsom Girls' Grammar School, and went on to study at Auckland Teachers' Training College.

[3] Manley was nominated for the New Zealand swimming team to go to the 1954 British Empire and Commonwealth Games in Vancouver, but she did not compete because of her beauty pageant commitments.