| Ōtō | |
| Native Name Lang: | ja |
| Settlement Type: | Village |
| Pushpin Map Caption: | Location in Japan |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | Region |
| Subdivision Type2: | Prefecture |
| Subdivision Name2: | Wakayama |
| Subdivision Type3: | District |
| Subdivision Name3: | Nishimuro |
| Extinct Title: | Merged |
| Extinct Date: | May 1, 2005 (now part of Tanabe) |
| Leader Title: | Mayor |
| Leader Title1: | Vice Mayor |
| Unit Pref: | Metric |
| Area Total Km2: | 219.06 |
| Population Total: | 3280 |
| Population As Of: | 2003 |
| Population Density Km2: | 14.97 |
| Timezone1: | JST |
| Utc Offset1: | +09:00 |
| Blank Name Sec1: | City hall address |
| Website: | Official village website |
was a village located in Nishimuro District, Wakayama Prefecture, Japan.
As of 2003, the village had an estimated population of 3,280 and a density of 14.97 persons per km2. The total area was 219.06 km2.
On May 1, 2005 Ōtō, along with the village of Ryūjin (from Hidaka District), the town of Nakahechi (also from Nishimuro District), and the town of Hongū (from Higashimuro District), was merged into the expanded city of Tanabe.
Ōtō is made up of 3 smaller areas (hamlets/localities) within the village boundary. The areas are called Ayukawa, Tomisato and Mikawa.http://www.aikis.or.jp/~otomura/guide/top.html