Second Lieutenant

Second Lieutenant (2nd Lt, 2/Lt) is often the lowest military Commissioned Officer rank. It is usually directly below Lieutenant or First Lieutenant. Some forces use Sub-Lieutenant (S/LT) separately to this.

The US Army, US Air Force and US Marines have the rank of 2nd Lt as the first Officer rank (OF-D), with 1st Lt above it (OF-1) and Captain in OF-2. The US Navy and US Coast Guard have Ensign in OF-D, with Lieutenant Junior Grade in OF-1 and Lieutenant in OF-2.

The British Army and Royal Marines have Second Lieutenant in OF-D, with Lieutenant in OF-1 and Captain in OF-2. The Royal Navy have Midshipman in OF-D, Sub Lieutenant in OF-1 and Lieutenant in OF-2.