Change General settings in Contacts on Mac
Use General settings in Contacts to choose how names and addresses are shown on contact cards.
To change these settings in the Contacts app on your Mac, choose Contacts > Settings, then click General.
Show First Name
View contacts’ first names before or after their last names.
This setting determines the order of the names in the card template in Contacts Template settings.
Choose whether contacts are sorted alphabetically by first or last name.
Short Name Format
Choose how contacts’ names appear—for example, first name only or full name—in apps like Mail.
View nicknames for contacts, if a nickname is available in the nickname field on a contact’s card.
Show Siri Suggestions
View suggested contacts found in other apps like Mail.
Choose a country or region’s address format to use to display street addresses.
Choose the account where you want to add new contacts by default. This option appears If you use multiple accounts in Contacts.