Lieutenant Commander

Lieutenant commander is a military rank used in Federation Starfleet, superior to lieutenant and subordinate to commander. A lieutenant commander may be a senior officer in a department on a large vessel or starbase, or may be commanding officer or first officer of a smaller vessel.
A lieutenant commander is normally addressed as commander except in ceremonial contexts or printed orders.
The rank is equivalent to the Marines rank of major, wing colonel in the Federation Starfighter Corps, the Cardassian rank of glinn (excepting the Star Trek: Sigils and Unions continuity, where glinn is often equated with the rank of commander), and the Romulan rank of centurion.
== Insignia ==
===Starfleet===
===Klingon Navy===
== Current ==
* Carina Abia
* Cordelia Chase
* Evelyn Chase
* Heidi Duvall
* Elita Jarani
* Robert Karo
* Eric Kramer
* Saghi Meru