Any admin in a group can make a participant an admin. A group can have an unlimited number of admins. The original creator of a group can't be removed and will remain an admin unless they exit the group.
Make a participant an admin
Open the WhatsApp group chat, then tap the group subject.
Alternatively, tap and hold the group in the CHATS tab. Then, tap More options > Group info.
Tap the participant you want to make an admin.
Tap Make group admin.
Make multiple participants admins at the same time
Open the WhatsApp group chat, then tap the group subject.
Alternatively, tap and hold the group in the CHATS tab. Then, tap More options > Group info.
Tap Group settings > Edit group admins.
Select the participants you want to make admins.
Tap the green check mark when you're finished.
Dismiss an admin
Open the WhatsApp group chat, then tap the group subject.
Alternatively, tap and hold the group in the CHATS tab. Then, tap More options > Group info.
Tap the admin you want to dismiss.
Tap Dismiss as admin.
Dismiss multiple admins at the same time
Open the WhatsApp group chat, then tap the group subject.
Alternatively, tap and hold the group in the CHATS tab. Then, tap More options > Group info.