ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Core.Portal Namespace / PortalItem Class / Owner Property

Owner Property (PortalItem)
Gets the username of the user who owns this item.
Syntax
public new string Owner {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also