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 The Music Machine, British radio station