How To Find Your Primary (Default) Office 365 Domain Name

Azure AD primary domain

This article will show you how to find your primary (or default) domain name in Office 365.

Find the Default Office 365 Domain Name Using the Web Console

To find your default Office 365 domain name using the web console do the following:

  1. Log in to your admin console
  2. Expand Settings and click on Domain
  3. Identify the domain which is suffixed with (Default)
Office 365 default domain name

Find the Default Office 365 Domain Name Using PowerShell

To find your default Office 365 domain name using PowerShell do the following:

  1. Log in to MS Online Services
  2. Use the Get-MsolDomain command

The code could e.g. look like this:

Connect-MsolService
(Get-MsolDomain | Where-Object {$_.isDefault}).name

(thanks to Matthew, Enterprise Engineer at AllCovered)

If you’re looking for your Office 365 tenant name (which differs from your default Office 365 domain name) have a look at this article.

If you’re still using a mix of AD Users & Computers, Azure AD web console, Exchange Admin Center and on-premise Exchange Admin Console consider this:

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