# Null Value

A value showing that a reference or nullable value type currently refers to no value.

## What is **Null Value** in C#?

**Null Value** — A value showing that a reference or nullable value type currently refers to no value.

```csharp
class Profile
{
    string? nickname;
    string displayName = "Guest";
}
```

Level: Apprentice · [More C# terms at this level](https://www.ask-codey.com/glossary/subjects/c-sharp/apprentice)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/null-value