ARSA or Arsa may refer to:
People Arsa Ahmad (born 2003), Indonesian footballer Arsa Sarasin (born 1937), Thai diplomat Arsenije Milošević (1931–2006), Yugoslav Serbian film and television director
Other uses Arylsulfatase A, encoded by the gene ARSA All-Russian Scout Association Arakan Rohingya Salvation Army, an insurgent group in Rakhine State, Myanmar (Burma) Arsa River, in Romania Automated radioxenon sampler analyzer Arsa, a settlement in Albești, Constanța, Romania Associate of the Royal Scottish Academy
See also Arsha (community development block) in India