Omonogawa, Akita

{{Infobox settlement

| name = Omonogawa

| native_name = 雄物川町

| native_name_lang = ja

| settlement_type = Former settlement

| image_skyline = Akita Omonogawa-town.png

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| subdivision_type = Country

| subdivision_name = Japan

| subdivision_type1 = Prefecture

| subdivision_name1 = Akita

| subdivision_type2 = District

| subdivision_name2 = Hiraka

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| unit_pref = Metric

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}}{{nihongo|Omonogawa|雄物川町|Omonogawa-machi}} was a town located in Hiraka District, Akita Prefecture, Japan.

In 2003, the town had an estimated population of 10,829 and a density of 147.13 persons per km². The total area was 73.60 km².

On October 1, 2005, Omonogawa, along with the towns of Hiraka, Jūmonji, Masuda and Ōmori; and the villages of Sannai and Taiyū (all from Hiraka District), was merged into the expanded city of Yokote.{{Cite web |title=【定住促進】横手市のなりたち｜横手市公式サイト |trans-title=Yokote City |url=https://www.city.yokote.lg.jp/shisei/1001173/1003698.html |access-date=2024-02-14 |website=横手市公式サイト |language=ja |quote=10月1日、横手市は、旧横手市平鹿郡の8市町村（横手市、増田町、平鹿町、雄物川町、大森町、十文字町、山内村、大雄村）が合併して一つになり、人口約10万人、面積693.04km2の秋田県第二の都市として誕生しました。}}