UIM or Uim may refer to:
Science and technology uim, a multilingual input method framework UIM (card), used in mobile phones
Organizations Politics Ulster Independence Movement, the British political party United Independent Movement, the South African political party Sports Union Internationale Motonautique, the governing body for motorboat racing Union Internacional Manila F.C., a Filipino professional football club based in Manila Military Unit Interventie Mariniers, a Dutch special forces unit Union de Industrias Militares, the Cuban military–industrial complex