Ogawa (小川町, Ogawa-machi) was a town located in Nasu District, Tochigi Prefecture, Japan.
As of 2003, the town had an estimated population of 6,939 and a density of 168.59 persons per km2. The total area was 41.16 km2.
On October 1, 2005, Ogawa, along with the town of Batō (also from Nasu District), was merged to create the town of Nakagawa.