Nae Udaka

 is a female Japanese judoka.
She started judo at the age of 6.
Her favorite technique is Osotogari.
In 2007, she belonged to Komatsu Limited after graduating from Teikyo University.
She has been a shadow of Kaori Matsumoto, who is an Olympic and World champion.
in 2013, she won the gold medal in the -57 kg weight class at Grand Slam Tokyo by defeating olympic bronze medalist Marti Malloy.
In 2014, she won the gold medal in the lightweight (57 kg) division at the 2014 World Judo Championships at the age of 29.