Honorverse
The Honorverse is the name commonly used for the setting of the "Honor Harrington Series" of military science fiction novels and short stories created by author David Weber. These stories form what is referred to as the canon. The word is a portmanteau of "Honor Harrington," (the main character) and "universe."
TRMN
The Royal Manticoran Navy: The Official Honor Harrington Fan Association, Inc. patterns its structure and culture on the military structure and society described in the Honorverse canon, insofar as is possible.