🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiالعربيةفارسی中文EntityQ877673· pop 9· linked from 29 articlesSM U-23Also known as SM U-23 (Germany)German SubmarineWikidata factsImageSM U-23.jpgSources (3)wikidata.orges.wikipedia.orgde.wikipedia.orgvia Wikidata · CC0On the mapAvailable in 9 languagesEspañolFrançaisDeutsch中文العربيةFinnishPolskiفارسیvia Wikidata sitelinks · CC0Connectionsgross register tonnageEntityNorwayCountryCategories1912 ships1915 in ScotlandFair IsleHistory of ShetlandMaritime incidents in 1915Ship infoboxes without an imageShips built in KielShipwrecks of ScotlandType U 23 submarinesU-boats commissioned in 1913U-boats sunk by British submarinesU-boats sunk in 1915World War I shipwrecks in the Atlantic Ocean