Oberstleutnant is a German Army (Heer

Heer

Heer is German for "army". Generally, its use as "army" is not restricted to any particular country, so "das britische Heer" would mean "the British army".However, more specifically it can refer to:*An army of Germany:...

) and Air Force (Luftwaffe

Luftwaffe

Luftwaffe is a generic German term for an air force. It is also the official name for two of the four historic German air forces, the Wehrmacht air arm founded in 1935 and disbanded in 1946; and the current Bundeswehr air arm founded in 1956....

) rank equal to Lieutenant Colonel

Lieutenant colonel

Lieutenant colonel is a rank of commissioned officer in the armies and most marine forces and some air forces of the world, typically ranking above a major and below a colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence...

, above Major

Major (Germany)

Major is a rank of the German military which dates back to the Middle Ages.It equates to Major in the British and US Armies, and is rated OF-3 in NATO.During World War II, the SS equivalent was Sturmbannführer....

, and below Oberst

Oberst

Oberst is a military rank in several German-speaking and Scandinavian countries, equivalent to Colonel. It is currently used by both the ground and air forces of Austria, Germany, Switzerland, Denmark and Norway. The Swedish rank överste is a direct translation, as are the Finnish rank eversti...

.

There are two paygrade associated to the rank of Oberstleutnant. Paygrade A14 is the standard level paygrade whereas A15 is assigned to senior Oberstleutnant personnel.

Oberstleutnant of the General Staff or Reserve have the words "im Generalstabsdienst" (i.G.), "der Reserve" (d.R.) after their rank—thus: "OTL i.G.", "OTL d.R."

Oberstleutnant who are definitely retired are described as "außer Dienst" (a.D.)

During World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, the SS

Schutzstaffel

The Schutzstaffel |Sig runes]]) was a major paramilitary organization under Adolf Hitler and the Nazi Party. Built upon the Nazi ideology, the SS under Heinrich Himmler's command was responsible for many of the crimes against humanity during World War II...

 maintained an equivalent rank known as Obersturmbannführer

Obersturmbannführer

Obersturmbannführer was a paramilitary Nazi Party rank used by both the SA and the SS. It was created in May 1933 to fill the need for an additional field grade officer rank above Sturmbannführer as the SA expanded. It became an SS rank at the same time...

.

Junior Rank Major Major (Germany) Major is a rank of the German military which dates back to the Middle Ages.It equates to Major in the British and US Armies, and is rated OF-3 in NATO.During World War II, the SS equivalent was Sturmbannführer....

German officer rank Bundeswehr The Bundeswehr consists of the unified armed forces of Germany and their civil administration and procurement authorities... Oberstleutnant

Senior Rank Oberst Oberst Oberst is a military rank in several German-speaking and Scandinavian countries, equivalent to Colonel. It is currently used by both the ground and air forces of Austria, Germany, Switzerland, Denmark and Norway. The Swedish rank överste is a direct translation, as are the Finnish rank eversti...