---
title: kMDItemFSOwnerUserID
framework: coreservices
role: symbol
role_heading: Global Variable
path: coreservices/kmditemfsowneruserid
---

# kMDItemFSOwnerUserID

The user ID of the owner of the file. A CFNumber.

## Declaration

```swift
let kMDItemFSOwnerUserID: CFString!
```