Nataniela Oto (born May 26, 1980) is a Tongan-Japanese rugby union player. He plays as a flanker. In 2004, he obtained Japanese citizenship. He is the brother of Lopeti Oto, who played for the Japanese national rugby union team in the 1995 Rugby World Cup.
|Date of birth||May 26, 1980|
|Place of birth||Tonga|
|Height||5 ft 8 in (1.73 m)|
|Weight||209 lb (95 kg)|
|Notable relative(s)||Lopeti Oto (older brother)|
|Rugby union career|
Oto plays for Toshiba Brave Lupus. He has 12 caps for Japan, with 4 tries scored, 20 points in aggregate, from 2001 to 2007. He was present at the 2007 Rugby World Cup, playing a single match, in the 91–3 loss to Australia. He has been absent from his National Team since then.