Editing List of naval battles (section)

===[[Spanish Civil War]] (1936–1939)===

* 1936
** 5 August [[Convoy de la Victoria]] – Republican destroyer ''Alcalá Galiano'' intercepts a Nationalist convoy but fails to stop it
** 8 August – Action of 8 August 1936 –  Nationalist cruiser [[Spanish cruiser Almirante Cervera|''Almirante Cervera'']] sank British yacht ''Blue Shadow'' while shelling Republican positions.
** 16 August-12 September [[Battle of Majorca]] – Republicans launch amphibious assault on Nationalist-held Majorca but fails
** 19 September [[1936 uprising in Spanish Guinea|Spanish Guinea uprising]] – Nationalist merchant raider sinks a Republican prison ship
** 29 September [[Battle of Cape Espartel]] – Nationalists cruisers sink Republican destroyer ''[[Spanish destroyer Almirante Ferrándiz (1928)|Almirante Ferrándiz]]''.
** 14 December – Action of 14 December 1936 – Soviet merchant ship ''Komsomol'' is sunk by Nationalist cruiser ''Canarias''.
* 1937
** 10 January – Action of 10 January 1937 – Soviet merchant ship ''Smidovich'' is captured by Nationalist destroyer {{ship|Spanish destroyer|Velasco||2}}.
** 5 March [[Battle of Cape Machichaco]] – Nationalist heavy cruiser {{ship|Spanish cruiser|Canarias||2}} defeats a [[Basque Auxiliary Navy]] squadron
** 28 March – Action of 28 March 1937 – Greek merchant ship ''Gardelaki'' is captured by Nationalist patrol ship ''Uad Kert''.
** 2 April – Action of 2 April 1937 – Greek merchant ship ''Poli'' is sunk by Nationalist heavy cruiser ''Baleares''.
** 4 April – Action of 4 April 1937 – Panamanian merchant ship ''Janu'' is captured by Nationalist patrol ship ''Huelva''.
** 5 April – Action of 5 April 1937 – Greek merchant ship ''Nagos'' is captured by Nationalist patrol ship ''Maria Teresa''.
** 6 April – Action of 6 April 1937 – Panamanian merchant ship ''Andra'' is sunk by Nationalist armed trawler ''Galerna''.
** 16 April – Action of 16 April 1937 – Panamanian merchant ship ''Hordena'' is captured by Nationalist light cruiser ''Almirante Cervera''.
** 24 May [[Italian auxiliary cruiser Barletta|Attack on the ''Barletta'']] – Republican aircraft attack the Italian merchant raider ''Barletta'', killing six Italian sailors
** 26 May [[German torpedo boat Albatros|Attack on the ''Albatros'']] – Republican aircraft attack the German destroyer ''Albatros'' with no casualties
** 29 May [[Deutschland incident (1937)|''Deutschland'' incident]] – Republican aircraft attack the German cruiser ''Deutschland'', killing 31 and injuring 74 of her crew
** 31 May [[Bombardment of Almería]] – Kriegsmarine squadron led by [[German cruiser Admiral Scheer|''Admiral Scheer'']] bombards the Republican port of Almería in retaliation for an attack on the cruiser ''Deutschland''
** 14 July – Nationalist cruiser ''Almirante Cervera'', assisted by the naval trawler ''Galerna'', seized the British cargo ship ''Molton'' off Santander, inside Spanish waters, despite the presence of the British battleship {{HMS|Royal Oak|08|2}}.
** 7 July – Action of 7 July 1937 – French merchant ship ''Liberte'' is captured by Nationalist cruiser ''Almirante Cervera''.
** 15 August – Action of 15 August 1937 – Panamanian merchant ship ''Geo McKnight'' is disabled by the [[Italian destroyer Freccia (1930)|Italian destroyer ''Freccia'']].
** 31 August – Action of 31 August 1937 – Soviet merchant ship ''Timiryazev'' is sunk by the [[Italian destroyer Turbine (1927)|Italian destroyer ''Turbine'']].
** 1 September – Action of 1 September 1937 – British merchant ship ''Woodford'' is sunk by the [[Italian submarine Diaspro|Italian submarine ''Diaspro'']].
** 3 September – Action of 3 September 1937 – Soviet merchant ship ''Blagoev'' is sunk by the [[Italian submarine Luigi Settembrini|Italian submarine ''Luigi Settembrini'']].
** 7 September [[Battle of Cape Cherchell]] – Nationalist cruiser [[Spanish cruiser Baleares|''Baleares'']] destroys a Republican convoy.
** 12 December – Action of 12 December 1937 – French merchant ship ''Sydney'' is captured by Nationalist merchant raider ''Lazaro''.
** 21 December – Action of 21 December 1937 – French merchant ship ''Francois'' is captured by Nationalist merchant raider ''Mallorca''.
* 1938
** 21 January – Sinking of the ''Endymion'' – British merchant ship ''Endymion'' is sunk by Nationalist submarine [[Italian submarine Archimede (1933)|''General Sanjurjo'']].
** 21 January – Capture of the ''Pomaron'' – Estonian merchant ship ''Pomaron'' is captured by Nationalist merchant raider ''Vincente Puchol''.
** 22 January – Action of 22 January 1938 – Estonian merchant ship ''Juss'' is captured by Nationalist merchant raider ''Mallorca''.
** 5–6 March [[Battle of Cape Palos (1938)|Battle of Cape Palos]] – Republican squadron sinks Nationalist cruiser ''Baleres''.
** 19 March – Action of 19 March 1938 – Soviet merchant ship ''Lensovet'' is captured by Nationalist patrol ships.
** 30 March – Sinking of the ''Lena'' – Greek merchant ship ''Lena'' is sunk by Nationalist submarine ''General Mola''.
** 30 March – Capture of the ''Alix'' – Norwegian merchant ship ''Alix'' is captured by Nationalist patrol ship ''Huevla''.
** 19 May – Action of 19 May 1938 – Greek merchant ship ''Ellinico Vuono'' is captured by Nationalist cruiser ''Canarias''.
** 26 May – Capture of the ''Stepanov'' – Soviet merchant ship ''Skvortzov Stepanov'' is captured by Nationalist cruiser ''Canarias''.
** 26 May – Capture of the ''Jan'' – Danish merchant ship ''Jan'' is captured by Nationalist patrol ship ''Inasi''.
** 30 May – Action of 30 May 1938 – Panamanian merchant ship ''Wintonia'' is captured by a squadron of Nationalist cruisers.
** 31 May – Action of 31 May 1938 – Soviet merchant ship ''Potishev'' is captured by Nationalist merchant raider ''Vincente Puchol''.
** 21 July – Action of 21 July 1938 – Norwegian merchant ship ''Skulda'' is captured by Nationalist patrol ships.
** 17 October – Action of 17 October 1938 – Soviet merchant ship ''Katayama'' is captured by Nationalist minelayer ''Vulcano''.
** 23 October – Action of 23 October 1938 – Soviet merchant ship ''Tsyurupa'' is captured by Nationalist cruiser ''Almirante Cervera''.
** 2 November – Action of 2 November 1938 – Soviet merchant ship ''Max Hoels'' is captured by Nationalist minelayer ''Vulcano''.
** 9 November – Action of 9 November 1938 – Greek merchant ship ''Nicolau Eleni'' is captured by Nationalist patrol ships.
** 11 November – Capture of the ''Victoria'' – Greek merchant ship ''Victoria'' is captured by Nationalist merchant raider ''Mar Cantabrico''.
** 11 November – Sinking of the ''Hanna'' – Dutch merchant ship ''Hanna'' is sunk by Nationalist submarine ''General Mola''.
** 19 November – Action of 19 November 1938 – Latvian merchant ship ''Everards'' is captured by Nationalist patrol ships.
* 1939
** 15 January – Action of 15 January 1939 – French merchant ship ''Aunis'' is captured by Nationalist gunboat ''Deto''.
** 28 January – Action of 28 January 1939 – British merchant ship ''Lake Lugano'' is sunk by Nationalist merchant raider [[MV Mar Negro|''Mar Negro'']].