Ōmagari (大曲市, Ōmagari-shi) was a city located in Akita Prefecture, Japan.

The city was founded on May 3, 1954.

On March 22, 2005, Ōmagari, along with the towns of Kamioka, Kyōwa, Nakasen, Nishisenboku, Ōta and Semboku; and the village of Nangai (all from Semboku District), merged to create the city of Daisen.

[1] Juei Ushiromatsu, former New York Mets baseball pitcher

This Akita Prefecture location article is a stub.