深谷市（日语：深谷市／ふかやし）是埼玉县北部的一个人口约15万人的市。

Fukaya(深谷市,Fukaya-shi)} is a city located in northern Saitama Prefecture, in the central Kantō region of Japan. As of 1 February 2016, the city had an estimated population of 144,696 and a population density of 1040 persons per km². Its total area was 138.37 square kilometres (53.42 sq mi). It is famous for a variety of welsh onions or Fukaya-negi(深谷ネギ).