TMM

TMM may refer to:

Science

 * Transfer-matrix method, a statistical mechanics method
 * Transfer-matrix method (optics), a method to describe wave propagation through stratified media
 * Trimethylenemethane, a reactive organic compound and a ligand in organometallic chemistry

Software and business

 * Tell Me More (software), French language-learning software from Auralog
 * Testing Maturity Model, a software process improvement model
 * Too Much Media, an American software company based in New Jersey
 * Traffic Management Microkernel, a product of F5 Networks
 * Translation memory manager, a software program to aid human translators

Other uses

 * The Maybe Man, a 2023 studio album by American pop band AJR
 * Tell Me More, an American radio show on National Public Radio hosted by Michel Martin
 * Texas Memorial Museum, a museum at the University of Texas at Austin in the United States
 * Textbook of Military Medicine, a U.S. Army publication
 * Theresa May, a Prime Minister of the United Kingdom, from her full name Theresa Mary May
 * TMM, the former ISO 4217 code of the Turkmenistani manat, the currency of Turkmenistan
 * TMM-1 mine, an anti-tank landmine