diff --git a/README.md b/README.md
index eadbb383..7b48a6db 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,7 @@ When learning CS, there are some useful sites you must know to get always inform
 - [Refactoring Guru](https://refactoring.guru/): Refactoring And Design Patterns
 - [Google Java Style Guide](https://google.github.io/styleguide/javaguide.html): Google Java Style Guide
 - [Rust Coding style](https://github.com/rust-dev-tools/fmt-rfcs): Rust code formatting RFCs and coding style guides
+- [Google C# Style Guide](https://google.github.io/styleguide/csharp-style.html): Google C# Style Guide
 
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