No. There is currently no way for you to delete your account. However we know people have been asking for a such a feature, so our team is considering adding such a thing in the future. If you are having difficulty with your account, and feel deleting it would be the solution, we encourage you to contact customer support so they can try to help you first.
Important - If you want to erase all of your personal data from the game, this option is available, but you will need to contact our customer support team first. You will need to contact them through the game so they can validate your ownership of the account, and it may take up to 30 days to complete. For more information about this, please check out the Right of Erasure FAQ: https://thatgamecompany.helpshift.com/a/sky-children-of-the-light/?s=legal&f=how-do-i-erase-all-of-my-personal-data-right-of-erasure&p=all