EntityQ1815879· pop 10U-20Sign in to saveU20 or U-20 may refer to:Article2 sectionsContentsNaval vesselsOther usesU20 or U-20 may refer to:== Naval vessels ==Read full article (4 paragraphs)Connectionslist of G-20 summitsEntitygreat truncated cuboctahedronEntityGerman submarine U-20EntitySM U-20EntityCategoriesLetter–number combination disambiguation pages