TI, ti, and variants may refer to:
A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes.
Timur (Persian: تیمور Temūr, Chagatai: Temür; 9 April 1336 – 18 February 1405), historically known as Amir Timur and Tamerlane (Persian: تيمور لنگ Temūr(-i) Lang, "Timur the Lame"), was a Turco-Mongol conqueror.
Tina Turner (born Anna Mae Bullock; November 26, 1939) is an American-born Swiss singer-songwriter, dancer, and actress.
Eldrick Tont "Tiger" Woods (born December 30, 1975) is an American professional golfer who is among the most successful golfers of all time, and one of the most popular athletes of the 21st century.
The Tiananmen Square protests of 1989, commonly known in mainland China as the June Fourth Incident (六四事件), were student-led demonstrations in Beijing, the capital of the People's Republic of China, in 1989. More broadly, it refers to the popular national movement inspired by the Beijing protests during that period, sometimes called the '89 Democracy Movement (八九民运).