| Kawanishi | |
| Native Name Lang: | ja |
| Settlement Type: | Former municipality |
| Seal Type: | Emblem |
| Pushpin Map Caption: | Location in Japan |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Hokuriku |
| Subdivision Type2: | Prefecture |
| Subdivision Name2: | Niigata Prefecture |
| Subdivision Type3: | District |
| Subdivision Name3: | Nakauonuma District |
| Extinct Title: | Merged |
| Extinct Date: | April 1, 2005 (now part of Tōkamachi) |
| Leader Title: | Mayor |
| Leader Title1: | Vice Mayor |
| Unit Pref: | Metric |
| Area Total Km2: | 73.55 |
| Population Total: | 7,829 |
| Population As Of: | 2003 |
| Timezone1: | JST |
| Utc Offset1: | +09:00 |
| Blank Name Sec1: | City hall address |
was a town located in Nakauonuma District, Niigata Prefecture, Japan.
As of 2003, the town had an estimated population of 7,829 and a density of 106.44 persons per km2. The total area was 73.55 km2.
On April 1, 2005, Kawanishi, along with the towns of Matsudai and Matsunoyama (both from Higashikubiki District), and the village of Nakasato (also from Nakauonuma District), was merged into the expanded city of Tōkamachi.[1] [2]