| Sangenjaya | |
| Native Name: | 三軒茶屋 |
| Native Name Lang: | ja |
| Settlement Type: | District |
| Pushpin Map: | Japan Tokyo city#Japan Tokyo |
| Coordinates: | 35.643°N 139.67°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: | 13,108 |
| Population Density Km2: | auto |
| Timezone1: | JST |
| Utc Offset1: | +9 |
| Postal Code Type: | Postal code |
| Postal Code: | 154-0024[2] |
| Area Code: | 03 |
is a district of Setagaya, Tokyo, Japan. It is also known as Sancha (三茶) for short.It is home to many bars, cafes and restaurants. Some major streets include National Route 246, Setagaya-dori and Chazawara-dori.
Setagaya Board of Education operates public elementary and junior high schools.
Sangenjaya 1-chome is zoned to Nakazato Elementary School (中里小学校) and Mishuku Junior High School (三宿中学校). Sangenjaya 2-chome is zoned to Sangenjaya Elementary School (三軒茶屋小学校) and Komazawa Junior High School (駒沢中学校).[3]
Sangen-jaya Station on the Den-en-toshi Line is located at the north end of this district.
The area is the basis for a district called Yongen-Jaya in the video game Persona 5 and its spin-offs, just outside of Shibuya.[4]