| Yasuzuka | |
| Native Name Lang: | ja |
| Settlement Type: | Former municipality |
| 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: | Higashikubiki District |
| Extinct Title: | Merged |
| Extinct Date: | January 1, 2005 (now part of Jōetsu) |
| Leader Title: | Mayor |
| Leader Title1: | Vice Mayor |
| Unit Pref: | Metric |
| Area Total Km2: | 70.23 |
| Population Total: | 3,521 |
| Population As Of: | 2003 |
| Timezone1: | JST |
| Utc Offset1: | +09:00 |
| Blank Name Sec1: | City hall address |
was a town located in Higashikubiki District, Niigata Prefecture, Japan.
As of 2003, the town had an estimated population of 3,521 and a density of 50.14 persons per km2. The total area was 70.23 km2.
On January 1, 2005, Yasuzuka, along with the villages of Maki, Ōshima and Uragawara (all from Higashikubiki District), the towns of Itakura, Kakizaki, Ōgata and Yoshikawa, the villages of Kiyosato, Kubiki, Nakagō and Sanwa (all from Nakakubiki District), and the town of Nadachi (from Nishikubiki District), was merged into the expanded city of Jōetsu.[1] [2]