How to Create a Group in Outlook (Contact Groups & Microsoft 365 Groups Explained)

If you regularly email the same set of people — your team, a project committee, or a family group — retyping every address every time is a productivity drain. Outlook offers more than one way to fix this, and understanding the difference between them matters before you start clicking around.

The Two Types of Groups in Outlook

Outlook uses the word "group" to mean two genuinely different things:

• Contact Groups (formerly called Distribution Lists) — a private list of email addresses saved in your personal contacts. Only you can use it.
• Microsoft 365 Groups — a shared workspace feature available through Microsoft 365 (formerly Office 365) that includes a shared inbox, calendar, file storage, and more. Anyone in the group can access it.

Most people searching for how to create a group in Outlook are looking for one of these two things, and the steps are completely different.

How to Create a Contact Group in Outlook (Desktop)

A Contact Group is the simplest option. It lives in your personal Outlook contacts and works like a mailing list — address an email to the group, and it goes to everyone on it.

Steps in Outlook for Windows (classic desktop app):

1. Open Outlook and go to the People section (the contacts icon in the bottom-left navigation bar).
2. On the Home tab, click New Contact Group.
3. Give your group a clear, memorable name in the Name field.
4. Click Add Members and choose from:
   • From Outlook Contacts — select from your existing address book
   • From Address Book — pull from your organization's global directory
   • New Email Contact — add someone not already in your contacts
5. Add all the members you need, then click Save & Close.

Your Contact Group now appears in your contacts and can be typed directly into the To, CC, or BCC fields when composing any email.

Steps in Outlook for Mac:

1. Open the People view from the sidebar.
2. Click the + button and select New Contact List.
3. Name the list and use the search field to add contacts.
4. Save when done.

📋 Note: On Mac, Microsoft calls this a Contact List rather than a Contact Group — same concept, different label.

How to Create a Microsoft 365 Group in Outlook

A Microsoft 365 Group is a different beast. It's a collaborative feature that creates a shared inbox, a shared calendar, a SharePoint document library, and optionally a Teams workspace — all tied together under one group identity. It's designed for teams, not just quick email blasts.

Steps via Outlook on the Web (outlook.office.com or outlook.com):

1. In the left sidebar, find Groups and click the + icon next to it (or look for New Group).
2. Enter a Group name — Outlook will auto-suggest an email address for the group.
3. Add a description (optional but useful for larger organizations).
4. Set Privacy:
   • Public — anyone in your organization can find and join
   • Private — only invited members can access
5. Click Create, then add members by searching their names or email addresses.
6. Click Add to finish.

Steps in Outlook Desktop (Microsoft 365 version):

1. In the Home tab, look for New Group in the ribbon (this only appears if your account is connected to a Microsoft 365 subscription with Groups enabled).
2. Follow the same naming, privacy, and membership steps as above.

⚙️ Important: This feature requires a Microsoft 365 work or school account. Personal Outlook.com accounts have limited or no access to the full Microsoft 365 Groups feature set.

Key Differences at a Glance

Managing and Editing Your Group

Once created, both group types can be edited:

• Contact Groups: Open the group from your contacts, click Edit, add or remove members, then save.
• Microsoft 365 Groups: Open the group in Outlook, go to the group settings or Edit Group, and modify membership, name, or privacy settings. Owners have full control; members have limited editing rights.

You can also delete a Contact Group without affecting any of the individual contacts inside it — removing someone from the group list doesn't remove them from your address book.

Variables That Affect How This Works for You

Not every Outlook user is working with the same setup, and that creates real differences in what's available:

• Account type — Personal Microsoft accounts, work/school Microsoft 365 accounts, and Exchange on-premises accounts all have different feature access. Microsoft 365 Groups are largely unavailable on personal accounts.
• Outlook version — The classic Outlook desktop app, the new Outlook for Windows, Outlook on the Web, and Outlook for Mac all have slightly different navigation and labeling.
• Organization policies — In corporate environments, IT administrators may restrict who can create Microsoft 365 Groups or require approval to do so.
• Operating system — Mac users see different menus and terminology than Windows users, and mobile apps (iOS/Android) have more limited group management capabilities.

Whether a Contact Group covers your needs or whether a Microsoft 365 Group makes more sense depends on how many people are involved, whether collaboration beyond email is needed, and what kind of Outlook account you're actually working with.