How to delete calendars and remove events on your iPhone
If you have unwanted events or calendars in Calendar on your iPhone, you can delete, unsubscribe, or hide them.
Delete a calendar event
In the Calendar app, tap the unwanted event.
Tap Delete Event, then tap Delete Event again. Or if you want to report an event from an unknown contact, tap Report Junk, then tap Delete and Report Junk.
Delete or unsubscribe from a calendar
In the Calendar app, tap the Calendars button
.Tap the info button next to the calendar.
Tap Delete Calendar or Unsubscribe. If a calendar can't be removed (for example, the US Holidays calendar), you can hide it instead.
To confirm, tap Delete Calendar or Unsubscribe again.
Hide a calendar
In the Calendar app, tap the Calendars button
.Tap to deselect the checkmark next to the calendar.
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