Lieutenant commander (also hyphenated lieutenant-commander) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies (armed services) and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader. The NATO rank code is OF-3.

A lieutenant commander is a senior department officer on a large ship or shore installation. He or she may also be commanding officer or executive officer (second-in-command) of a smaller ship or installation.

Lieutenants were commonly put in command of smaller vessels not warranting a commander or captain: such a lieutenant was called a "lieutenant commanding" or "lieutenant commandant" in the United States Navy, and a "lieutenant in command", "lieutenant and commander", or "senior lieutenant" in the Royal Navy. The USN settled on "lieutenant commander" in 1862, and made it a distinct rank; the RN followed suit in March 1914.

The insignia worn by a Royal Navy lieutenant commander (Lt Cdr) is two medium gold braid stripes with one thin gold stripe running in between, placed upon a navy blue/black background. The top stripe has the ubiquitous loop used in all RN officer rank insignia. The RAF follows this pattern with its equivalent rank of squadron leader.

Montel Brian Anthony Williams (born July 3, 1956) is an American television personality, radio talk show host and actor. He is best known as host of the long-running The Montel Williams Show, and more recently as a spokesperson for the Partnership for Prescription Assistance (PPA). Williams is also active with the non-profit MS Foundation, which he founded after being diagnosed with multiple sclerosis in 1999.

Williams was born in Baltimore, Maryland. As a resident of Glen Burnie, Maryland, he was bused to Andover High School in neighboring Linthicum, Maryland where he was elected president of both his junior and senior classes. He was a good student, athlete and musician and active in county-wide student government issues in Annapolis, Maryland. His father, Herman Williams, Jr., was a firefighter who in 1992 became Baltimore's first African-American Fire Chief. Montel has five siblings including his 52 year old brother James.

Born in Baltimore, Maryland, on July 3, 1956, Williams enlisted in the U.S. Marine Corps upon graduating high school in 1974. He went to boot camp at Parris Island, South Carolina, where he was promoted to platoon guide. After basic training, he was sent to the Desert Warfare Training Center at Twentynine Palms, California.

Arackaparambil Kurien Antony (born on December 28, 1940) is an Indian politician who is currently a Member of Parliament from Rajya Sabha and the current Defence Minister of India. He previously served as the Chief Minister of Kerala.

He presently also serves as the chairman of the Disciplinary Action Committee of the All India Congress Committee and member of the Central Election Committee and the Congress Working Committee (CWC). He is a senior member of the Cabinet Committees on Accommodation, Economic Affairs, Political Affairs, and Security.

A. K. Antony was born in a Syrian Catholic family at Cherthala, near Alleppey in Travancore, as the son of Arackaparambil Kurien Pillai and Aleykutty Kurian. He lost his father in 1959 and self-financed part of his education through odd jobs.

He completed his primary education in Holy Family Boys High school (Lower primary) and Government Boys High school (Upper primary), Cherthala (both are mixed higher secondary schools now and the latter has changed its name to Sree Narayana Memorial Government Higher Secondary school) and completed his Bachelor of Arts from Maharajas College and Bachelor of Law from Mahatma Gandhi University.

William Bruce Pitzer (April 13, 1917 - October 29, 1966) was an officer of the United States Navy whose death is speculated to have had some connection with the assassination of John F. Kennedy.

Pitzer joined the Navy reserve in 1934 at the age of seventeen and trained as an x-ray technician. After discharge in 1939, he worked for three years as chief x-ray technician at the Episcopal Ear, Eye and Nose Hospital. He re-enlisted in 1942 after the United States entered World War II. His obituaries listed him as "a consultant to the visual arts department of Montgomery Junior College".

At the time of the Kennedy assassination, Pitzer worked at the National Naval Medical Center (NNMC) where Kennedy's autopsy took place. Pitzer's alleged possession of autopsy-related film and photographs is briefly discussed in the television documentary The Men Who Killed Kennedy. A fellow naval officer of Pitzer's named Dennis David says that he viewed such materials in Pitzer's office at the NNMC, and that they appeared to contradict the official findings of the autopsy. At the time of his death, Pitzer held the rank of Lieutenant Commander. He was found in his office in the NNMC television studio with a single gunshot wound to the head. Pitzer's death occurred the same day that the Kennedy family agreed, through their attorney, to release to the National Archives several items related to the autopsy of the fallen president, including photographs and x-rays. The Naval investigation into Pitzer's death reported no evidence of foul play. He is buried at Arlington National Cemetery.

Commander Harold Auten VC DSC (22 August 1891 – 3 October 1964) was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.

A former pupil of Wilson's School, he was 26 years old and a lieutenant in the Royal Naval Reserve during the First World War when the following deed took place for which he was awarded the VC.

On 30 July 1918, in the English Channel, off the coast of England, Lieutenant Auten was in command of HMS Stock Force (one of the 'Q' or 'mystery' ships) when she was torpedoed by a U-boat and very badly damaged. The 'Panic party' took to the boats and the U-boat surfaced half a mile away, but after 15 minutes the 'Panic party' began to row back, followed by the U-boat. When it lay about 300 yards from Stock Force, the guns opened fire, doing tremendous damage to the submarine, which sank in a very short time. Nearing safe harbour, Stock Force finally sank about four hours later, Lieutenant Auten and her crew being taken off by a torpedo boat.