Changing a folder name and maintaining links

[kanecats]

I have several departments (25) with folders. Under the folders are more folders and files cross linked to files higher and lower in the hierarchy. I would like to change a folder name. For example Geriatrics is now called NJISA. The thing is, I have 15 years of data under Geriatrics. Is there a way to display a new name, without changing the links? To basically have a display folder name, but maintaining a core links name? It isn't feasible to rename and open all of the folders and files. Thanks!