"Update Office 365 Mailbox Display Name with PowerShell"

Logan Jul 18, 2026

ัด้ besar your productivity and personalize your Office 365 experience? One of the key adjustments you can make is to change your display name for your mailbox. This guide will walk you through the process using PowerShell, ensuring you have a professional and engaging manner to communicate with your colleagues and clients.

Best PowerShell Modules
Best PowerShell Modules

Before we dive into the steps, let's clarify why you might want to change your display name in Office 365. A display name is the name that appears in the To, From, and Cc fields of your emails, as well as in the mailbox list and address book. Having a consistent and professional display name helps you establish credibility and makes it easier for others to recognize and connect with you.

How to Manage Azure Resources via PowerShell
How to Manage Azure Resources via PowerShell

Understanding Your Display Name vs. Full Name

First, it's essential to understand the distinction between your display name and full name in Office 365. Your full name is the combination of your first name, middle name (if applicable), and last name. It appears in the global address list and is typically used for formal identification purposes. On the other hand, your display name is the name that represents you in the majority of communication settings within Office 365.

a white shelf with many drawers and a no name sign above it
a white shelf with many drawers and a no name sign above it

In some cases, you might want your display name to differ from your full name for various reasons, such as using a preferred name, maintaining privacy, or reflecting a company hierarchy. The following sections will guide you through changing your display name while keeping your full name intact.

Requirements for Changing Your Display Name

a black mailbox sitting on the side of a road next to some palm trees
a black mailbox sitting on the side of a road next to some palm trees

Before proceeding, ensure you have the necessary permissions to make changes to your display name. Regular users can modify their display name independently, while administrators or users with appropriate roles can update the display names of other users in their organization. Additionally, you'll need to have the Exchange Online PowerShell module installed to connect to your Office 365 account.

If you're an administrator, make sure that the user you're updating has a mailbox. Display names can only be changed for users with mailboxes. Once you've confirmed that your permissions and requirements are met, let's dive into the process of changing your display name using PowerShell.

Steps to Change Your Display Name in Office 365

Office mailbox- teacher mailbox- wall pocket- wall file- mail holder- hand painted to match your decor- you specify art
Office mailbox- teacher mailbox- wall pocket- wall file- mail holder- hand painted to match your decor- you specify art

Follow these steps to change your display name in Office 365 using PowerShell. We'll provide both user and administrator perspectives, so you can choose the one that fits your scenario.

Changing Your Own Display Name

1. Open PowerShell as an administrator and connect to your Office 365 Exchange Online PowerShell by running:

a person sitting in front of a laptop computer with the title how to separate first and last name in excel
a person sitting in front of a laptop computer with the title how to separate first and last name in excel

`Connect-ExchangeOnline -UserPrincipalName your-email@example.com -ShowProgress $true`

Replace `your-email@example.com` with your actual email address.

I ran one PowerShell command and reclaimed space from a Windows folder nobody explains
I ran one PowerShell command and reclaimed space from a Windows folder nobody explains
It’s more than just a good-looking mailbox
It’s more than just a good-looking mailbox
Engraved Company Logo Letterbox, Personalised Modern Business Letterbox, Custom Branded Office or Shop Mail Box - Design 2
Engraved Company Logo Letterbox, Personalised Modern Business Letterbox, Custom Branded Office or Shop Mail Box - Design 2
24 Mailbox Ideas to Spruce Up Your Curb Appeal
24 Mailbox Ideas to Spruce Up Your Curb Appeal
a white and black box with numbers on it in front of some rocks, plants and trees
a white and black box with numbers on it in front of some rocks, plants and trees
Microsoft Initiates First Release Candidates For Powershell 7.2.0 – Research Snipers
Microsoft Initiates First Release Candidates For Powershell 7.2.0 – Research Snipers
two mailboxes with the numbers 209 and 209b on them against a white brick wall
two mailboxes with the numbers 209 and 209b on them against a white brick wall
Modern & Custom Mailboxes | Dream Mailboxes
Modern & Custom Mailboxes | Dream Mailboxes
Mailbox Makeover
Mailbox Makeover

2. Enter the following command to set your new display name. Be sure to include your full email address:

`Set-Mailbox -Identity "your-email@example.com" -FirstName "Your First Name" -LastName "Your Last Name"`

Replace `"Your First Name"` and `"Your Last Name"` with your desired display name components.

Changing Another User's Display Name (Admin Perspective)

1. Connect to your Office 365 Exchange Online PowerShell as an administrator using the following command:

`Connect-ExchangeOnline -UserPrincipalName admin-email@example.com -ShowProgress $true`

Replace `admin-email@example.com` with the admin account's email address.

2. To change another user's display name, use the following command. Replace the placeholders with the appropriate values:

`Set-Mailbox -Identity "user-email@example.com" -FirstName "First Name" -LastName "Last Name"`

3. Verify the change by checking the user's display name in the Office 365 admin center or the Exchange Online Powershell.

Simultaneously Changing Display Name and Alias

In some cases, you might want to update both your display name and your email alias at the same time. To do this, modify the previous commands to include the following parameter:

`-EmailAddresses user@yourdomain.com,"display-name"@yourdomain.com`

Replace `user@yourdomain.com` with the user's primary email address and `display-name` with the desired display name to use for the new email alias.

By following these steps, you can effectively change your display name or update the display names of users within your organization, ensuring a polished and professional presence in Office 365.

As a final thought, remember that consistency is key when it comes to display names. Once you've changed your display name, make sure to update it across all relevant platforms, such as your Outlook signature, your LinkedIn profile, and any professional websites or portfolios. By maintaining a consistent online presence, you'll make it easier for others to find and connect with you, ultimately enhancing your professional network and communication experience.