MLL

MLL may refer to:


 * Major League Lacrosse
 * Malua Bay language (ISO 639-3: mll), spoken in Malekula, Vanuatu
 * Marshall Don Hunter Sr. Airport (IATA: MLL), in Marshall, Alaska
 * Mayor Lori Lightfoot, mayor of Chicago
 * Morel-Lavallée lesion
 * An enzyme encoded by the KMT2A gene