Per fess wavy Buff and Azure, in base a box hook Or.
From a wreath Or and Buff two demi-spears in saltire and one erect Proper superimposed by a lion's head Or garnished Sable charged on the shoulder with a shield blazoned: Gules, a pale Vert fimbriated Or; and within a wreath of palm Proper.
The upper half of the shield is buff for the Quartermaster Corps. The lower half in blue with the wavy partition line symbolizes water, and with the box hook charged thereon represents the duties of the organization.
The lion, symbol of strength and bravery, represents the organization's campaign participation credits in World War II. The palm wreath symbolizes their Vietnam War service. The three spears commemorate the unit's Meritorious Unit Commendation awards for Vietnam. The two Army Superior Unit decorations awarded for successive operations in 1994, are represented by the colors of the shield.
The coat of arms was originally approved for the 396th Quartermaster Battalion (Port), Regular Army Inactive on 25 April 1938. It was amended to correct the blazon of the shield on 7 March 1939. It was rescinded on 19 December 1961. The coat of arms was reinstated, amended to add a crest and redesignated for the 11th Transportation Battalion on 1 December 2003.