TC3

TC3 may refer to:


 * Tc3 transposon, a transposon in Caenorhabditis elegans
 * 2008 TC3, a meteoroid that entered Earth's atmosphere on October 7, 2008
 * Tha Carter III, a studio album by American rapper Lil Wayne
 * Tompkins Cortland Community College, also abbreviated as TC3, a college in Dryden, New York, United States
 * Time Crisis 3, the third instalment of the Time Crisis arcade game series
 * TC3 Touring Car, a touring car racing specification
 * TC3 International Series, an international touring car series
 * Tactical Combat Casualty Care, a standard of care in prehospital battlefield medicine
 * Plymouth Horizon TC3, an automobile manufactured by Chrysler Corporation