Article details how to delete a calendar
Note You can’t delete the primary Outlook calendar that appears when you first use Outlook.
Although you can’t delete the primary Outlook calendar, you can delete all the items on that calendar.
Warning The following steps will delete all items in your calendar, including holidays that were automatically added to the calendar. You can replace default Outlook holidays that are deleted during these steps. All other calendar items are permanently deleted.
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When you open these calendars in Outlook, they are added to the Folder Pane in the calendar. This enables you to quickly view the calendar in the future with only one click.
To remove shared, team, group, and SharePoint calendars, do the following:
The calendar is removed from the Folder Pane and no longer appears in the calendar. The calendar itself isn’t deleted as you were only viewing a copy of the information.Top of Page