How to Delete a Calendar in Outlook (And What to Know Before You Do)

Outlook gives you the ability to manage multiple calendars simultaneously — personal schedules, shared team calendars, imported subscriptions, and more. That flexibility is useful, but it also means your calendar list can get cluttered over time. Knowing how to delete a calendar in Outlook — and understanding what actually happens when you do — can save you from accidental data loss or unexpected sync issues.

What "Deleting a Calendar" Actually Means in Outlook

Before diving into steps, it's worth understanding that not all calendars in Outlook behave the same way. Outlook displays several types of calendars, and what deletion looks like depends on which type you're dealing with:

• Personal calendars you created yourself inside Outlook
• Shared or delegated calendars from other people's accounts
• Subscribed calendars (imported via URL or .ics file)
• Calendar folders tied to connected accounts (like Google or iCloud)
• The default "Calendar" that ships with every Outlook account

The default Outlook calendar cannot be deleted — it's a core folder tied to your account. However, any additional calendars you've created or added can generally be removed.

How to Delete a Calendar in Outlook on Desktop (Windows & Mac)

On Outlook for Windows

1. Open Outlook and go to the Calendar view using the icon in the bottom-left navigation bar.
2. In the left-hand panel, find the calendar you want to remove under My Calendars or Other Calendars.
3. Right-click the calendar name.
4. Select Delete Calendar from the context menu.
5. Confirm the deletion when prompted.

If the option is greyed out or missing, you're likely looking at your default calendar or a calendar you only have view access to — not one you own or created.

On Outlook for Mac

1. Switch to Calendar view.
2. In the sidebar, locate the calendar you want to delete.
3. Right-click (or Control-click) the calendar name.
4. Choose Delete from the dropdown menu.
5. Confirm when asked.

The steps are nearly identical, though the interface labels and sidebar layout differ slightly between macOS versions and Outlook editions (Microsoft 365 vs. standalone Outlook 2021, for example).

How to Delete a Calendar in Outlook on the Web (OWA)

Outlook on the web — accessed through outlook.com or your organization's Microsoft 365 portal — handles calendar deletion similarly:

1. Click the Calendar icon in the left navigation panel.
2. In the left sidebar, hover over the calendar you want to delete.
3. Click the three-dot menu (…) that appears next to its name.
4. Select Delete calendar.
5. Confirm the action.

⚠️ Deleting a calendar here removes it and all events within it. This action is typically not reversible through the standard interface, so confirm you've exported or noted anything important before proceeding.

Removing vs. Deleting: Shared and Subscribed Calendars

There's an important distinction between deleting a calendar you own and removing one you've added from an external source.

When you remove a shared calendar, you're not deleting the source — you're just hiding it from your Outlook. The calendar owner still has it, and they can re-share it with you at any time.

How to Delete a Calendar in Outlook Mobile (iOS & Android)

The Outlook mobile app has a more limited calendar management interface than the desktop versions. Full calendar deletion isn't always available directly in the app — you may need to:

1. Tap the hamburger menu (three lines) in the top-left corner.
2. Tap the gear icon to access Settings.
3. Under Mail Accounts or connected services, you can manage which calendars are visible.
4. To fully delete a personal calendar, you'll generally need to do so through Outlook on the web or the desktop app, then let the changes sync to mobile.

This is one of the more common points of confusion — the mobile app reflects your calendar setup but doesn't always give you tools to fully manage it. 🔄

Factors That Affect Your Experience

A few variables will shape exactly what you see and what's possible:

• Account type — Microsoft 365 business accounts, Outlook.com personal accounts, and Exchange accounts all have slightly different calendar management options and permissions.
• Admin restrictions — In a work or school environment, your IT administrator may restrict the ability to delete certain calendars or shared resources.
• Outlook version — Outlook 2016, 2019, 2021, and Microsoft 365 can look and behave differently, especially after recent UI updates.
• Operating system — Outlook for Mac has a notably different interface than Outlook for Windows, even when running the same subscription version.
• Connected third-party accounts — Calendars synced from Google, Apple, or other services are managed through those account connections, not through Outlook's native calendar tools directly.

What Happens to Events Inside a Deleted Calendar

When you delete a calendar in Outlook, all events stored within that calendar are also deleted. They won't move to another calendar automatically, and they won't appear in your trash or recoverable items in most configurations. This is different from deleting a single event, which sometimes goes to a recoverable folder temporarily.

If you have recurring meetings, appointments, or important dates stored in the calendar you're about to remove, it's worth exporting it first. Outlook supports exporting calendars as .ics files — a universal calendar format — through File > Open & Export > Import/Export on the desktop version.

The right approach depends heavily on which version of Outlook you're running, how your account is configured, and whether the calendar belongs to you or was shared with you from someone else's account. Understanding your specific setup is what ultimately determines which of these paths applies.