Senior lieutenant

Senior lieutenant (Finnish: yliluutnantti, German: Oberleutnant, Russian: старший лейтенант, starshy leytenant Swedish: premiärlöjtnant) is a military grade between a lieutenant and a captain. Sometimes a senior lieutenant is called a first lieutenant. The rank is equivalent to the NATO grade of OF-1a.

Finland

Yliluutnantti (premiärlöjtnant in Swedish) is a Finnish military rank above luutnantti (löjtnant) and below kapteeni (kapten), equivalent to a senior lieutenant. It is used in the Finnish Defence Forces (army, navy and air force) and the Finnish Border Guard.

The prescribed duty is a company vice-commander. Officers who have graduated as Bachelors of Military Science from the National Defence College with the rank of luutnantti usually re-enter the college after four years' tour of duty. After a study of two additional years, they are promoted yliluutnantti and return to more challenging duties. Yliluutnantti is also the highest rank available to those educated in the now-decommissioned school Maanpuolustusopisto (comparable to a military junior college). The rank of yliluutnantti may be placed in the NATO rank class OF-1, although it is not a part of the NATO system.