Junior lieutenant is a junior officer rank in several countries, comparable to Sub-lieutenant.
See main article: Unterleutnant.
In East Germany's National People's Army, the rank of German: Unterleutnant was introduced in 1956 and used until German reunification in 1990.
In many Eastern European countries, the rank of junior lieutenant is used.
The rank of Junior lieutenant (Russian: Mла́дший лейтена́нт|Mládshiy leytenánt) was introduced into the Russian military in 1937.