Open the Instagram app or go to https://www.instagram.com/
Log in to the account you want to delete
Go to your profile
Tap or click Settings and privacy
Tap or click Accounts Center
Tap or click Personal details
Tap or click Account ownership and control
Tap or click Deactivation or deletion
Select Delete account
Choose a reason for deletion
Enter your password again
Confirm Delete account
Wait for the account to be permanently deleted after the process completes