Alois Reiser (April 6, 1887 – April 4, 1977) was an American composer of Czechoslovakian origin.
Born in Prague, he came to the United States in 1905.
He composed a number of works for orchestra, including two tone poems and two cello concertos; he also wrote chamber music, including string quartets, and the opera Gobi.
He also composed music for films.
He died in Los Angeles.