ARQ

ARQ or Arq may refer to:
 * Automatic Repeat-reQuest, an error control mechanism for data transmission
 * An admission request in H.323 Registration, Admission and Status (RAS) messages
 * ARQ (film), a 2016 American film
 * ARQ (journal), an architecture journal
 * ISO 639-3 code for Algerian Arabic
 * ARQ, a query engine for Jena