The abbreviation TSE can refer to:
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tse in Wiktionary, the free dictionary.
- Tse (Cyrillic) (Ц, ц), a letter of the Cyrillic alphabet
- Tse Monastery, a 4th-century Christian monastery in Egypt
- Superior Electoral Court (Portuguese: Tribunal Superior Eleitoral, TSE), the highest electoral court in Brazil
- Supreme Electoral Court (disambiguation) (Spanish: Tribunal Supremo Electoral, TSE), a name given to a number of different courts in South America
- Texas South-Eastern Railroad, a Class III Texas railroad
- Total solar eclipse, a rare astronomical event
- Total Sports Entertainment, a sports entertainment and game software company
- Turkish Standards Institution (Turkish: Türk Standardları Enstitüsü, TSE), a public standards organization in Turkey
- An old IATA airport code for Nursultan Nazarbayev International Airport, now NQZ