---
title: Locale.LanguageCode.IdentifierType.alpha3
framework: foundation
role: symbol
role_heading: Case
path: foundation/locale/languagecode-swift.struct/identifiertype/alpha3
---

# Locale.LanguageCode.IdentifierType.alpha3

Three-letter alpha-3 code, e.g. “eng” for English

## Declaration

```swift
case alpha3
```