C# Folder Naming Conventions

In this tutorial, we will discuss C# folder naming conventions. We will see the advantages of having naming conventions of folders and what are the best practices.

C# Folder Naming Conventions

In a typical C# project, especially large-scale and team-based projects, the number of classes, interfaces, and other components can grow rapidly. Hence, having an intuitive folder structure becomes increasingly crucial for:

  • Code Readability: It’s easier to understand code when it’s well-organized.
  • Team Collaboration: Consistent folder naming conventions ensure everyone on the team is on the same page.
  • Maintenance: As your project evolves, a good folder naming scheme will minimize the overhead involved in adding new features or fixing bugs.

General Guidelines for Folder Naming Conventions in C#

Here are some general guidelines to follow when naming folders in a C# project:

  • Use PascalCasing: This means each new word begins with a capital letter.
  • Be Descriptive: The name should indicate what kind of files are inside the folder.
  • Avoid Special Characters: Stick to alphabets and numbers to ensure that the name is easily readable and accessible.

Examples and Use Cases

Here are some typical examples and use-cases where proper folder naming conventions can make a significant impact:

MVC Project Structure

  • Controllers: Houses all controller classes.
  • Models: Contains all model classes.
  • Views: For storing all view files.

API Project Structure

  • ApiControllers: For controllers handling API routes.
  • Services: Where business logic services are stored.
  • DTOs: To store Data Transfer Objects.

Library Project Structure

  • Core: Holds the main logic.
  • Utils or Helpers: Where utility and helper classes are stored.
  • Interfaces: To hold all interface files.

Best Practices for C# Folder Naming Conventions

Here is a table summarizing the best practices for folder naming in a C# project:

Best PracticeDescriptionExample
Use PascalCasingCapitalize the first letter of each word.UserServices
Be DescriptiveThe name should describe the content.DatabaseModels
Avoid Special CharactersStick to alphabets and numbers.Utils
Use Singular FormUse the singular form for a collection of similar items.Model

Common Pitfalls

  • Inconsistency: Mixing different naming styles can make the codebase confusing.
  • Vagueness: Using non-descriptive names like ‘temp’, ‘stuff’, etc.
  • Over Abbreviation: Names like ‘Utl’, ‘Ctr’, etc., are not self-explanatory and should be avoided.


In this C# tutorial, I have explained best practices for C# folder naming conventions with various examples. Having the best naming conventions helps in code organization, readability, and ease of team collaboration.

You may also like the following tutorials: