With a few simple steps, you can delete your WhatsApp account.
When you do this, all information related to your account will be deleted, including your profile photo, membership in WhatsApp groups, and all message history.
Open “Settings”
The “Settings” button is the tiny gear icon on bottom right corner of the screen. Once in settings, tap “Account.”
First, get to your account info.
Then tap “Delete My Account”
After doing this, you have one more step.
From here it’s pretty straightforward
Enter your phone number
When you click “Delete My Account,” a prompt will appear asking you to enter your phone number. Enter your number, then tap “Delete My Account” in red.
This is the final step in deleting your WhatsApp account.