TS or Ts may refer to:
A tsunami (from Japanese: 津波, "harbour wave"; English pronunciation: /tsuːˈnɑːmi/) or tidal wave, also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.
Tsetse (/ˈsiːtsi/ SEET-see, US /ˈtsiːtsi/ TSEET-see or UK /ˈtsɛtsi/ TSET-see), sometimes spelled tzetze and also known as tik-tik flies, are large biting flies that inhabit much of tropical Africa.
Tsar Bomba (Russian: Царь-бомба; "Tsar-bomb") was the Western nickname for the Soviet RDS-220 hydrogen bomb (code name Ivan or Vanya), the most powerful nuclear weapon ever detonated.
Tsai Ing-wen (Chinese: 蔡英文; pinyin: Cài Yīngwén; Pe̍h-ōe-jī: Chhoà Eng-bûn; born August 31, 1956) is the President of the Republic of China, commonly referred to as Taiwan.
Tsakhiagiin Elbegdorj (Mongolian: Цахиагийн Элбэгдорж, Cahiagín Elbegdorj Mongolian pronunciation: [t͡sʰaxiaˈgiːŋ ˈeɮpegˈtɔrt͡ʃ]; also referred to as Mongolyin Tsakhiagiin Elbegdorj; born 8 March 1963) is a Mongolian politician who has been President of Mongolia since 2009. He previously served as Prime Minister in 1998 and again from 2004 to 2006. Elbegdorj is considered one of the principal champions in emerging markets and was one of the architects of democracy in Mongolia.