TMI

TMI may refer to:

Organizations

 * TMI Associates, a Japanese law firm
 * TMI Episcopal, formerly Texas Military Institute, a preparatory school affiliated with the Episcopal Church
 * Taiwan Music Institute, a musical institute in Taiwan
 * Teen Missions International, an interdenominational mission organization based in Florida
 * Three Mile Island Nuclear Generating Station, a nuclear power station in Pennsylvania, USA
 * Time Module (TMI), a member of the Seiko Group, manufacturer of watch movements
 * Toastmasters International, an international public speaking organization
 * Tolani Maritime Institute, a Merchant Navy training institute
 * The Monroe Institute, a nonprofit education and research organization
 * Thomas More Institute, a secular academic institution located in Montreal, Quebec, Canada

Science

 * Trans-Mars injection, a propulsive maneuver used to set a spacecraft on a trajectory which will cause it to arrive to Mars
 * Transmarginal inhibition, a mental response to extreme stresses or pain
 * Trimethylindium, the most preferred metalorganic indium source for the MOCVD of Compound Semiconductors

Other uses

 * TMI, abbreviation for "Too much information", indicating information overload or excessively personal information
 * "T.M.I." (South Park), a 2011 episode
 * TMI Mudlib (TMI or TMI-2), online game software named for The Mud Institute
 * The Mortal Instruments, a series of books by Cassandra Clare
 * Sam & Mark's TMi Friday, previously called TMi, a Saturday morning show on CBBC
 * Ton-mile or tmi, a unit of freight transportation quantity
 * Tumlingtar Airport, an airport serving Tumlingtar, a city in Nepal
 * "TMI" a song by Joan Jett and the Blackhearts from the 2013 album Unvarnished