Get My Tenant ID

Easily find your Microsoft tenant ID by entering your domain name below.

About Get My Tenant ID Lookup Tool

Every Microsoft 365 Tenant is assigned a unique Tenant ID, a GUID that identifies that organization within Microsoft’s cloud infrastructure. This ID is publicly discoverable for any domain that uses Microsoft 365 and is often needed when configuring integrations, setting up third-party applications, troubleshooting sign-in issues, or working with Microsoft APIs.

Use this tool to instantly look up the Tenant ID for any Microsoft 365 domain. Simply enter a domain name and the tool will query Microsoft’s OpenID Connect discovery endpoint to retrieve the Tenant ID associated with that organization.

Important: The Tenant ID is publicly accessible information and does not grant any access to the organization’s data or systems. It simply identifies which Microsoft tenant is associated with a domain.