海軍少佐

海軍少佐（かいぐんしょうさ、英語: Lieutenant Commanderなど）は、海軍の佐官、少佐。海軍中佐の下、海軍上級大尉または海軍大尉の上。

中小規模の軍艦副長、分隊長、艇長、潜水艦艦長等を務める。

各国の海軍少佐

東アジア

• 大日本帝国海軍：海軍少佐
• 海上自衛隊：3等海佐（三等海佐）
• 大韓民国海軍：少領（소령）
• 中華民国海軍・中国人民解放軍海軍：少校

欧米

• アメリカ海軍・イギリス海軍：Lieutenant Commander
• ドイツ海軍：Korvettenkapitän
• フランス海軍：capitaine de corvette

階級章

• 
  Lieutenant commander (Antigua and Barbuda Coast Guard)^[1]
• 
  Lieutenant commander (オーストラリア海軍)^[2]
• 
  Lieutenant commander (Royal Bahamas Defence Force)^[3]
• 
  Lieutenant commander (バングラデシュ海軍)^[4]
• 
  Lieutenant commander (Barbados Coast Guard)
• 
  Lieutenant commander (Belize Coast Guard)
• 
  Leftenan komander(Royal Brunei Navy)^[5]
• 
  Lieutenant commander (フランス語: Capitaine de corvette) (カナダ海軍)^[6]
• 
  Kaptajnløjtnant(デンマーク海軍)
• 
  ሌፍተናንት ኮማንደርLēfitenaniti komanideri(Ethiopian Navy)
• 
  Lieutenant commander (Republic of Fiji Navy)
• 
  Lieutenant commander (Gambian Navy)
• 
  Lieutenant commander (Ghana Navy)
• 
  Lieutenant commander (Guyanan Coast Guard)
• 
  Lieutenant commander (Indian Navy)^[7]
• 
  Lieutenant commander (アイルランド語: Lefteanant-cheannasaí) (Irish Naval Service)^[8]
• 
  Lieutenant commander (Jamaican Coast Guard)^[9]
• 
  Komandleitnants(Latvian Naval Forces)^[10]
• 
  Lieutenant commander (Liberian National Coast Guard)^[11]
• 
  Komandoras leitenantas(Lithuanian Naval Force)^[12]
• 
  Leftenan komander(Royal Malaysian Navy)^[13]
• 
  Lieutenant commander (ナミビア海軍)^[14]
• 
  Lieutenant commander (Royal New Zealand Navy)^[15]
• 
  Lieutenant commander (Nigerian Navy)^[16]
• 
  Lieutenant commander (Pakistan Navy)^[17]
• 
  Lieutenant commander (Papua New Guinea Maritime Element)
• 
  Komandor porucznik(Polish Navy)^[18]
• 
  Locotenent-comandor(Romanian Naval Forces)^[19]
• 
  Lieutenant commander (Saint Kitts and Nevis Coast Guard)
• 
  Lieutenant commander (Sierra Leone Navy)
• 
  Lieutenant commander (South African Navy)^[20]
• 
  Lieutenant commander (Sri Lanka Navy)^[21]
• 
  Lieutenant commander (Tanzania Naval Command)
• 
  Lieutenant commander (Tongan Maritime Force)^[22]
• 
  Lieutenant commander (Trinidad and Tobago Coast Guard)^[23]
• 
  Lieutenant commander (イギリス海軍)^[24]
• 
  Lieutenant commander (アメリカ海軍)^[25]
• 
  Lieutenant commander (アメリカ沿岸警備隊)^[25]
• 
  Lieutenant commander (Vanuatu Maritime Wing)