Sup or SUP may refer to: Saskatchewan United Party, a political party in Saskatchewan Supremum or sup, in mathematics, the least upper bound Societas unius personae, proposed EU type of single-person company SUP Media or Sup Fabrik, a Russian internet company Sailors' Union of the Pacific Scottish Unionist Party (1986), established in the mid 1980s Simple Update Protocol, dropped proposal to speed RSS and Atom Software Upgrade Protocol Standup paddleboarding Stanford University Press Sydney University Press Syracuse University Press Sup squark, the supersymmetric partner of the up quark <sup>, an HTML tag for superscript Supangle or sup, a Turkish dessert See also Socialist Unity Party (disambiguation) Syriac Union Party (disambiguation) Supper, a meal that is consumed before bed Super (disambiguation)