Ogawa (小川町 Ogawa-machi?) was a town located in Higashiibaraki District, Ibaraki Prefecture, Japan.
As of 2003, the town had an estimated population of 19,545 and a density of 310.34 persons per km². The total area was 62.98 km².
On March 27, 2006, Ogawa, along with the town of Minori (also from Higashiibaraki District), and the village of Tamari (from Niihari District), was merged to create the city of Omitama.