Tri

Tri- is a numerical prefix meaning 3|three. Tri or TRI may also refer to:

Places

 * Tri-Cities Regional Airport, Tennessee, US, IATA code TRI
 * Triangulum constellation, astronomical abbreviation Tri
 * Trinidad and Tobago, UNDP country code TRI

People

 * Tri, Former nickname for wrestler Triple H
 * Try Sutrisno, Vice President of Indonesia (1993–1998)
 * Tri Rismaharini, Indonesian politician, Minister for Social Welfare (2020–)
 * Tri Hartanto, Indonesian basketball player

Arts, entertainment, and media

 * Tri (album), by Ana Stanić
 * Tri (novel), a Slovenian novel
 * El Tri, Mexican rock group
 * Tri (film), a 1965 Yugoslav film directed by Aleksandar Petrović

Organizations

 * Taipei Ricci Institute, an educational institute in Taiwan
 * Tamalpais Research Institute, a virtual music venue, San Rafael, California, US
 * Translational Research Institute (Australia)
 * Transport Research Institute, in Scotland

Other uses

 * AC Tripoli, a Lebanese association football club
 * Total return index
 * Toxics Release Inventory, US
 * El Tri or El Tricolor, nicknames of the Mexico national football team
 * Triangular function, tri(t)
 * Trichloroethylene
 * Triple reuptake inhibitors
 * Trisakti University, an Indonesian campus based on Jakarta