is one of the 16 wards of the city of Nagoya in Aichi Prefecture, Japan. As of 1 October 2019, the ward had an estimated population of 107,622 and a population density of 9,592 persons per kmò. The total area was 11.22 kmò.
Mizuho Ward is located near the geographic center of Nagoya city.
Mizuho District was established on February 11, 1944 from the eastern portion of Atsuka-ku.