Kantō Soccer League
| Founded | 1967 |
|---|---|
| Country | Japan |
| Confederation | AFC |
| Divisions | 2 |
| Number of clubs | Div 1: 10 Div 2: 10 |
| Level on pyramid | 5–6 |
| Promotion to | Japan Football League |
| Relegation to | Prefectural Leagues |
| Domestic cup(s) | Emperor's Cup |
| Current champions | Vonds Ichihara (2024) |
| Most championships | Vonds Ichihara (9) |
| Website | www.kanto-sl.jp |
| Current: 2025 Japanese Regional Leagues | |
Kantō Soccer League (関東サッカーリーグ, Kantō Sakkā Rīgu), abbreviated as KSL, is the Japanese fifth tier of league football, which is part of the Japanese Regional Leagues. It covers most of the Kantō region, as well as the prefectures of Chiba, Gunma, Ibaraki, Kanagawa, Saitama, Tochigi, Tokyo and Yamanashi. Its area is thus coextensive with the National Capital Region.