Baron Salomon Maurits von Rajalin (25 August 1757 – 23 September 1825) was a Swedish Navy admiral and civil servant.

[1] Appointed at the age of sixteen to acting sub-lieutenant in the Fleet of the Army, Rajalin served 1780–82 as an employee of the French Navy.

He was during the Russo-Swedish War 1788–90 military commander of the Archipelago fleet and excelled particularly in an engagement at Porkkalanniemi on 26 August 1789.

Appointed vice admiral in 1799, Rajalin was 1801–09 as acting adjutant general, rapporteur before the king in cases involving the fleet.

Appointed in 1809 by Charles XIII to admiral, he became in 1812 governor of Gävleborg County, but resigned already in 1813 from this position.