Kiyomi Niwata

Kiyomi Niwata (b December 10, 1970) is an athlete from Japan. She competes in triathlon.

Niwata competed at the first Olympic triathlon at the 2000 Summer Olympics. She took fourteenth place with a total time of 2:03:53.01.

Four years later, Niwata again competed. At the 2004 Summer Olympics, she again placed fourteenth. Her time was 2:07:42.70 on the more rigorous course.