ARSA or Arsa may refer to: Arylsulfatase A, gene for a human protein All-Russian Scout Association Arakan Rohingya Salvation Army, insurgent group in Rakhine State, Myanmar (Burma) Arsa, a settlement in Albești, Constanța, Romania Arsenije Milošević "Arsa" (1931–2006), Yugoslav Serbian film and television director Associate of the Royal Scottish Academy Automated Radioxenon Sampler Analyzer See also Arsha (community development block) in India