July 14, 2021 . 1 MIN READ
https://docs.github.com/en/github/administering-a-repository/deleting-a-repository
You can delete any repository or fork if you’re either an organization owner or have admin permissions for the repository or fork. Deleting a forked repository does not delete the upstream repository.
Only members with owner privileges for an organization or admin privileges for a repository can delete an organization repository. If Allow members to delete or transfer repositories for this organization has been disabled, only organization owners can delete organization repositories. For more information, see “Repository permission levels for an organization.”
Deleting a public repository will not delete any forks of the repository.
Warnings:
You can restore some deleted repositories within 90 days. For more information, see “Restoring a deleted repository.”