Open the Contacts app
Tap and hold a contact
Tap Share Contact
Select the contacts you want to delete
Tap Delete Contact
Confirm deletion
Open the Phone app
Tap Contacts
Tap a contact
Tap Edit
Scroll down and tap Delete Contact
Confirm deletion
Repeat for each contact
Open iCloud.com on a browser
Sign in with your Apple ID
Open Contacts
Hold Command on Mac or Ctrl on Windows
Select multiple contacts
Click the Settings gear
Click Delete
Confirm deletion
Open the Contacts app on a Mac synced with iPhone
Hold Command and click multiple contacts
Press Delete
Confirm deletion
Let iPhone sync the changes
Use a third-party contact management app
Select multiple contacts
Tap Delete
Confirm deletion