How to rename a shared folder
If you’re the owner of a shared folder, and you want to rename it, the change will only be reflected in your Dropbox account, but not in the Dropbox accounts of the shared folder members. Only new members that join the shared folder after the rename will see the new name.
If you’re not the owner, but you have editing permissions of a shared folder, and you want to rename it, the change will only be reflected in your Dropbox account, but not in the Dropbox accounts of the shared folder members. Learn more about Dropbox file and folder sharing permissions.
Learn how to rename files and folders.
If you want to rename a shared folder for all members, you must unshare the folder, rename it, and then reshare the folder.