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