RLM

RLM may refer to:


 * RLM, a wholly owned subsidiary of the Lockheed Martin Corporation, with significant presence in the Australian defence industry
 * Real Life Ministries, a non-denominational Evangelical Christian church in Idaho
 * Reichsluftfahrtministerium, the Ministry of Aviation (Germany) (1933–45)
 * Rheinisches Landesmuseum (Rhineland State Museum)
 * Right-to-left mark, a Unicode bidirectional formatting character
 * Red Letter Media, an American video and film production company that has achieved fame for its "Plinkett Reviews"
 * Reprise License Manager, a software toolkit providing license management
 * In statistics, a robust linear model
 * In computer software, release management