S
- Battle of St-Laurent-de-la-Muga (1794) - Wars of the French Revolution
- Battle of Saint-Omer - 1340 - Hundred Years' War
- Battle of St Pol de Leon - 1346 - Breton War of Succession
- Battle of St. Quentin (1914) - World War I
- Battle of Sablat - 1619 - Thirty Years' War
- First Battle of Saigon - 1968 - Vietnam War
- Battle of Sainte-Foy - 1760
- Battle of Salamanca - 1812 - Napoleonic Empire Wars
- Battle of Salamis - 480 BC - Persian Wars
- Battle of Salamis (in Cyprus) - 450 BC - pre-Peloponnesian War
- Battle of San Jacinto - 1836 - Texan War of Independence
- Battle of Santa Rosa - 1856 - Costa Rican troops rout Walker's soldiers
- Battle of Santiago de Cuba - 1898 - Spanish-American War
- Battle of Saratoga - 1777 - American Revolutionary War
- Battle of Sarhū - 1619
- Battle of Sari Bair - 1915 - World War I - Battle of Gallipoli
- Battle of Sarmada - 1119 - Crusader-Turkish Wars
- Battle of Scheveningen - 1653 - First Anglo–Dutch War
- Battle of Schwechat - 1848 - Hungarian Revolution of 1848
- Battle of Schwetz - see Battle of Świecino
- Battle of Scimitar Hill - 1915 - World War I - Battle of Gallipoli
- Battle of Sedan - 1870 - Franco-Prussian War
- Battle of Sedgemoor - 1685 - Monmouth's Revolt
- Battle of Sekigahara - 1600 - Unification of Japan
- Battle of Sempach - 1386 - Growth of the Old Swiss Confederacy
- Battle of Seneffe - 1674 - Franco-Dutch War
- Siege of Sevastopol - 1854-5 - Crimean War
- Battle of Shanhai Pass - 1644 - Manchu conquest
- Battle of Shijō Nawate - 1348 - Nanboku-chō period
- Battle of Shiloh - 1862 - American Civil War
- Battle of Sherrifmuir - 1715 - Jacobite uprising of 1715
- Battle of Shrewsbury - 1403 - Percy Revolt against Henry IV
- Battle of Sitka - 1804 - Russian colonization of the Americas
- Battle of Skibo and Strathfleet -1480- Scottish clan battle
- Battle of Sluis (1603) - Eighty Years' War
- Battle of Sluys - 1340 - Hundred Years' War
- Battle of Solférino - 1859 - Italian Independence War
- Battle of the Somme (1916) - World War I
- Battle of the Somme (1918) - World War I
- Battle of Sphacteria - 425 BC - Peloponnesian War
- Battle of Spion Kop - 1900 - Second Boer War
- Battle of Spotsylvania Court House - 1864 - American Civil War
- Battle of Stadtlohn - 1623 - Thirty Years' War
- Battle of Stalingrad - 1942 - World War II
- Battle of Stamford Bridge - 1066 - Viking invasion of England
- First Battle of St Albans - 1455 - Wars of the Roses
- Second Battle of St Albans - 1461 - Wars of the Roses
- Battle of St-Dizier - 1814 - Napoleonic Empire Wars
- Battle of Saint Gotthard - 1664 - Ottoman wars in Europe
- Battle of Steenkerque - 1692 - War of the Grand Alliance
- Battle of Stiklestad - 1030 - Christianization of Norway
- Battle of Stirling Bridge - 1297 - First War of Scottish Independence
- Battle of Stirling (1648) - Wars of the Three Kingdoms
- Battle of Stoke Field - 1487 - Wars of the Roses
- Battle of Stockash (1800) - Wars of the French Revolution
- Battle of Stralsund (1628) - Thirty Years' War
- Battle of Stralsund (1715) - Great Northern War
- First Battle of the Stronghold - 1873 - Modoc War
- Battle of Stångebro - 1598
- Battle of Suiyang - 757
- Battle of Surat - 1664 - Imperial Maratha Conquests
- Battle of Svistov - 1877 - Russo-Turkish War (1877–1878)
- Battle of Świecino (a.k.a. Schwetz, Żarnowiec) - 1462 - Thirteen Years' War
- Battle of Syracuse (415 BC) - Peloponnesian War
- Battle of Syracuse (387 BC) - Greek-Punic Wars
- Battle of Syracuse (214 BC) - Second Punic War
- Battle of Syracuse (1734) - War of the Polish Succession
Read more about this topic: List Of Battles (alphabetical)