| Founded | 1919 |
|---|---|
| Country |  United States |
| Confederation | CONCACAF (North American Football Union) |
| Number of teams | 10 |
| Level on pyramid | 5 |
| Domestic cup(s) | U.S. Open Cup |
| International cup(s) | CONCACAF Champions League |
| Current champions | Viking AA (3rd title) |
| Website | www |
The Greater Chicago Soccer League , formerly the National Soccer League (Chicago), formed by the merger of the Chicago Soccer League and International Soccer Football League of Chicago in 1928, is a semi-professional U.S. soccer league which claims to be the oldest continuously operating soccer league in the United States.[citation needed]