LMA may refer to:

Medicine Laryngeal mask airway, a mask used in anaesthesia and emergency medicine

Science Laban movement analysis, a language for describing, visualizing, interpreting and documenting human movement Land-mammal age Leaf mass per area, the inverse of Specific leaf area Levenberg–Marquardt algorithm, a mathematical procedure

Organisations Ladies' Memorial Association, Southern local organizations dedicated to the Confederate dead League Managers Association, an organization representing managers of English football clubs Lebanese Muslim Association, Sydney, Australia Light Miniature Aircraft, an aircraft design firm based in Okeechobee, Florida, United States Ligue de Martinique d'Athlétisme, the governing body for the sport of athletics in Martinique Liverpool Media Academy, a media, music and performing arts college in Liverpool, England Loan Market Association, a UK-based organisation formed to support the secondary loan market in Europe Lockheed Martin Aerospace, formally Lockheed Martin Corporation, a major US aerospace corporation London Metropolitan Archives, the main repository for archives pertaining to Greater London

Places Longwood Medical and Academic Area, Boston, United States Minchumina Airport, Alaska, United States

Other LaMarcus Aldridge (born 1985), American former basketball player Late Middle Ages, a period in history Live Music Archive, a subsection of the Internet Archive Local marketing agreement, an agreement whereby an entity operates a broadcast media outlet licensed to a different owner Luftmine Typ A, a type of German WWII naval mine