Frigate lieutenant

Hierarchy of naval officer ranks
Flag officers:
Admiral of the navy Admiral of the fleet • Fleet admiral General admiral • Grand admiral • Admiral Squadron admiral • Flotilla admiral Vice admiral • Lieutenant admiral Rear admiral • Counter admiral Commodore admiral • Schout-bij-nacht Port admiral
Senior officers:
Commodore • Fleet captain Post captain • Captain Captain of sea and war • Ship-of-the-line captain Captain at sea • Corvette captain Frigate captain • Commander
Junior officers:
Lieutenant commander • Captain lieutenant Flag lieutenant • Lieutenant Ship-of-the-line lieutenant • Corvette lieutenant Frigate lieutenant • Lieutenant (junior grade) Sub-lieutenant • Ensign
Training officers:
Passed midshipman • Midshipman Naval cadet

Frigate lieutenant is a rank in some navies, especially those of Spain (Spanish: Alférez de Navío) and Latin America, roughly equivalent to a sub-lieutenant in the Royal Navy or a lieutenant (junior grade) in the US Navy. The French Navy equivalent is a ship-of-the-line ensign (first class) (French: enseigne de vaisseau de première classe).

The NATO rank code is OF-1 (senior)

Austria-Hungary

Insignia of a k.u.k. Fregattenleutnant

In the Austro-Hungarian Navy the rank of Fregattenleutnant or fregatthadnagy was the lowest rank of professional officers. It was superior to Korvettenleutnant (a reserve rank) and inferior to Linienschiffsleutnant. Until 1908 the rank was called Linienschiffsfähnrich (ship-of-the-line ensign).