MTD may refer to:
Legal
Motion to dismiss
Medicine Maximum tolerated dose, in drug development Muscle tension dysphonia, hyperfunctional musculature causing a hoarse voice
Organizations Makkal Tamil Desam Katchi (People's Tamil Land Party), a political party in Tamil Nadu, India Maritime Trades Department, AFL–CIO Metal Trades Department of the AFL-CIO Michael Tobias Design, a manufacturer of electric bass guitars Movimiento de Trabajadores Desempleados, a type of unemployed worker's organization in Argentina MTD Products, an American manufacturer of outdoor power equipment for the mass market Champaign–Urbana Mass Transit District, a regional public transportation operator in Champaign County, Illinois, United States MTD, a German developer and manufacturer of line, bar and hyperspectral LED luminaires for industry Mettler Toledo (NYSE stock symbol MTD)
Technology Memory technology device, a type of device file in Linux for interacting with flash memory Metadynamics, a computer simulation method in computational physics, chemistry and biology MTD (mobile network), a former manual mobile network in Sweden, Norway and Denmark
Other uses Making Tax Digital a UK Government initiative of HMRC Month-To-Date, a time period used in business and accounting Moralistic therapeutic deism MTD(f), a minimax search algorithm