Quid may refer to: Quasi Universal Intergalactic Denomination, a proposed "space currency" created as a viral marketing campaign launched by Travelex. Quid, slang for the pound sterling, and the euro in Ireland. The Quid, a Canadian garage rock band from Winnipeg, Manitoba. Quid (encyclopedia), a French encyclopedia, established in 1963 by Dominique Frémy. Quid Inc., a private software and services company, specializing in text-based data analysis. Tertium quids (sometimes quids), various factions of the Democratic-Republican Party in the United States during the period 1804–1812. See also Kwid (disambiguation) Quid pro quo