TNM

TNM may refer to:


 * TNM staging system, a cancer staging system
 * Teniente R. Marsh Airport, the main airport in Antarctica
 * Telekom Networks Malawi, a Malawian mobile telecommunications company
 * Tetranitromethane, an organic oxidizer
 * The Nameless Mod, a total conversion mod released in 2009 for the game Deus Ex
 * Thomas Nelson (publisher) (NYSE stock symbol), a publishing firm that began in Scotland in 1798
 * Tokyo National Museum, the oldest and largest museum in Japan
 * The News Minute, an Indian online publication
 * Texas Nationalist Movement, a Texan political organization