Step 1
On the home screen of the device, tap Calendar.
The removal process has changed in the newer versions of iOS Calendar. If you're using a new version, please take a look at calendar removal in new versions of iOS Calendar.
Look for the calendar you wish to unsubscribe. If you are removing a calendar subscription, it will say Subscribed under it. This will help you identify the correct one.
If your calendar is listed under Google (or your Gmail address), please switch to removal instructions for Google Calendar.
Tap on the icon beside the calendar you wish to remove.
Updated 4 Nov 2023