1C is widely used in Russia as part of 1C:Enterprise (https://en.wikipedia.org/wiki/1C:Enterprise think sap/abap)

UPD: 1C can be used in both Russian and English. And I'm pretty sure it can be used outside of 1C:Enterprise.

It also has BSL Language Server and IDEA\VSCode extensions.

I dont use any of them, but here's a list of non-english programming languages that some people probably use day-to-day

https://en.wikipedia.org/wiki/Non-English-based_programming_...