| Kasuya | |
| Native Name: | 粕谷 |
| Native Name Lang: | ja |
| Settlement Type: | District |
| Pushpin Map: | Japan Tokyo city |
| Coordinates: | 35.6631°N 139.6052°W |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | City |
| Subdivision Name1: | Tokyo |
| Subdivision Type2: | Ward |
| Subdivision Name2: | Setagaya |
| Subdivision Type3: | Area |
| Unit Pref: | Metric |
| Population As Of: | September 1, 2019 |
| Population Footnotes: | [1] |
| Population Total: | 12,850 |
| Population Density Km2: | auto |
| Timezone1: | JST |
| Utc Offset1: | +9 |
| Postal Code Type: | Postal code |
| Postal Code: | 157-0063[2] |
| Area Code Type: | Area code |
| Area Code: | 03 |
is a district of Setagaya, Tokyo, Japan.
Setagaya Board of Education operates public elementary and junior high schools.
Kasuya 1-2 and 4-chome are zoned to Roka Elementary School (芦花小学校) and Roka Junior High School (芦花中学校). 3-chome is zoned to Tsukado Elementary School (塚戸小学校) and Chitose Junior High School (千歳中学校).[3]