ARF

ARF may refer to:

Organizations

 * Advertising Research Foundation
 * Animal Rescue Foundation
 * Armenian Revolutionary Federation
 * ASEAN Regional Forum

People

 * Cahit Arf (1910–1997), Turkish mathematician

Science, medicine, and mathematics

 * Acute renal failure
 * Acute rheumatic fever
 * ADP ribosylation factor, a small GTP-binding protein
 * The Arf invariant in mathematics
 * Argon fluoride laser or ArF laser
 * Atomic Resonance Filter or atomic line filter
 * Auxin Response Factors in plants
 * p14arf or ARF tumor suppressor

Other uses

 * Arf (Nanoha), character in Magical Girl Lyrical Nanoha
 * Abuse Reporting Format
 * Almost-Ready-to-Fly model aircraft
 * The Azkena Rock Festival, Vitoria-Gasteiz, Spain