Any information I've found so far lead to a 'NO'.
But it is possible to store LFS files in a custom location, so technically its possible to access them, but If a change was made to LFS files from a different repo, the change wouldn't be historically represented in the original repo.
The question is, is there a way to globally access the LFS files uploaded to the regular LFS store in Bitbucket from another repo in my organisation.