How can I delete a Whatsapp group of which, I am the administrator? I am the admin of a WhatsApp group. I found that there is another group with same members, so the group I made is of no use. Now, How can I delete it?
Remove all participants other than yourself, first by pressing and holding their name
Finally, as Admin, exit yourself from the group by pressing "Exit Group" option underneath
Now, the delete group option should become visible: press "Delete Group"


It's all been explained on WhatsApp FAQ - Group for Android.