Which title should precede the names of officers in the grade of Commander and above?

The title that is appropriate to precede the names of officers in the grade of Commander and above is "Commander." This is consistent with naval customs and ranks, where it is customary to address officers according to their rank in formal communication and documentation.

In the naval hierarchy, the designation of Commander is used to denote officers who are at the rank of Commander and above, including Captain and Admiral ranks. It emphasizes their authority and position within the naval structure. Using the correct title promotes clarity and respect within military communications, ensuring that individuals recognize the proper rank of the officer being addressed.

While you may encounter other ranks such as Captain or Colonel, these do not accurately represent the rank of officers specified in the question. "Colonel," for instance, is a rank in the Army, Air Force, and Marine Corps, and is not applicable in the context of the Navy. Similarly, "Lieutenant" does not apply to those at the Commander level or higher.