Lieutenant commander
In the Royal Navy and US Navy, a Lieutenant Commander (Lieutenant-Commander or Lt Cdr in the RN) is a commissioned officer superior to a lieutenant and inferior to a commander. The corresponding rank in the British Army, Royal Marines, US Army, US Air Force and US Marine Corps is major, and in the Royal Air Force is squadron leader.
A Lieutenant Commander is a senior Department officer on a large ship or shore installation. He or she may be executive officer (second in command) of a smaller ship or installation.
See also
| Student Officer | OF(D) | OF-1 | OF-2 | OF-3 | OF-4 | OF-5 | OF-6 | OF-7 | OF-8 | OF-9 | OF-10 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Royal Navy: | OCdt | Mid | SLt | Lt | Lt Cdr | Cdr | Capt | Cdre | RAdm | VAdm | Adm | Admiral of the Fleet |
| Royal Marines: | OCdt | 2Lt - | Capt | Maj | Lt Col | Col | Brig | Maj Gen | ||||
| Army: | OCdt | OD | 2Lt - | Capt | Maj | Lt Col | Col | Brig | Maj Gen | Lt Gen | Gen | FM |
| Royal Air Force: | OCdt | OD | PO - | Flt Lt | Sqn Ldr | Wg Cdr | Gp Capt | ACdre | AVM | AM | ACM | MRAF |