沼田市（日语：沼田市／ぬまたし）是日本群马县北部的城市。在中世时期是沼田城的城下町，也是关东平原上重要的军事要塞。

Numata(沼田市,Numata-shi) is a city located in northern Gunma Prefecture in the northern Kantō region of Japan. As of February 2015, the city had an estimated population of 48,840 and a population density of 110 persons per km². Its total area was 443.46 km², making it the largest city in terms of area within Gunma Prefecture. (The neighboring town of Minakami is the largest municipality in terms of area within Gunma.)