How to Delete Phone Contacts on iPhone?

Open the Contacts app or the Phone app

Tap the contact you want to delete

Tap Edit

Scroll down and tap Delete Contact

Tap Delete Contact again to confirm

To delete multiple contacts, use iCloud.com on a browser

Sign in with your Apple ID

Open Contacts

Select the contacts you want to remove

Press Delete and confirm

To remove contacts synced from an account, go to Settings

Tap Apps

Tap Contacts

Tap Contacts Accounts

Select the account

Turn off Contacts or delete the account