Change Display Name Mailbox Office 365: Step-by-Step Guide

Logan Jul 18, 2026

Ever found yourself wanting a more personalized touch to your professional outlook in Office 365? Your display name in your mailbox can play a significant role in branding your online presence. Changing it can help maintain consistency across your accounts or allow you to use a more recognizable name for your recipients. Here's a step-by-step guide to updating your display name in Office 365.

an office cubicle with several shelves and boxes on the floor next to it that says mail
an office cubicle with several shelves and boxes on the floor next to it that says mail

Before we dive into the process, it's crucial to understand that changing your display name in Office 365 does not alter your actual email address. It only updates how your name appears to senders and recipients. Let's explore how to achieve this.

a wooden clock with numbers on it and a plant growing out of the top shelf
a wooden clock with numbers on it and a plant growing out of the top shelf

Accessing the Office 365 Portal

The process involves navigating to the Office 365 portal, where you can make changes to your profile information. Let's first discuss how to access this portal.

there is a mailbox with many files in it and you have mail written on the front
there is a mailbox with many files in it and you have mail written on the front

Did you know you can reach the Office 365 portal directly through the web? No need to install any software; just ensure you have an active internet connection. In your web browser, type https://portal.office.com and hit enter.

Logging into Your Account

a wooden mailbox sitting in front of a house
a wooden mailbox sitting in front of a house

Once you've navigated to the portal, you'll be greeted with the sign-in page. Here, you'll need to enter your work or school account email and password to gain access.

If you're having trouble logging in, make sure you're using the correct credentials. Remember that your password is case-sensitive. If you're still experiencing issues, you may need to reset your password or contact your IT admin for assistance.

Editing Your Profile

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

With successful login credentials, you'll finally access your Office 365 portal. From here, it's a straightforward process to update your display name.

Let's explore the steps to edit your profile information, which includes your display name.

Locating Your Profile Settings

an email box with the words check your mail written on it and some stickers
an email box with the words check your mail written on it and some stickers

The first step involves finding your profile settings within the Office 365 portal. At the top right corner of the page, you'll find your profile initials or picture. Click on it to open a dropdown menu.

In the dropdown menu, you'll see various options like 'My Account', 'Settings', and 'Sign out'. Click on the 'My Account' option to proceed.

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Updating Your Display Name

Once you've clicked on 'My Account', you'll be redirected to a new page with your profile details. Here, you'll find various sections like 'User Information', 'Email', 'Phone numbers', and more.

To change your display name, look for the 'User Information' section. In the 'Name' field, you'll see your current full name. Click on the 'Edit' link to the right of the field to make changes.

Personalizing Your Display Name

After clicking the 'Edit' link, you'll be directed to a new page with various fields to update, including your first name, last name, and display name. This is where we can personalize your online presence.

Simply type your preferred display name in the 'Display Name' field. Make sure it's professional, respectful, and accurately represents you or your organization. Once you've entered your desired display name, click 'Save' at the bottom of the page.

Congratulations! You've successfully updated your display name in Office 365. Your new display name will now appear on your emails, making your communications more recognizable and personalized. This update does not affect your actual email address, only how your name is presented to senders and recipients. Keep this in mind when updating your display name for a professional and consistent online presence.