Various tooling exists to enable the use of WebAssembly with some of the other popular programming languages, although they are mostly experimental:

• C# via Blazor
• Haxe via WebIDL
• Java via TeaVM or Bytecoder
• Kotlin via TeaVM
• TypeScript via AssemblyScript

It is also technically possible to transpile a language to C and consequently compile that to a Wasm module, but the success of compilation is contingent on the output of the transpiler. More than likely, you'd have to make significant changes to the code to get it to work.