Karasu, Kara-su, Kara su or Qarasu (lit. 'black water/river' in Turkic languages) may refer to:
Rivers
The Balkans
- A former name of the Struma River (Struma Karasu) in Bulgaria and Thrace, northern Greece
- A former name of the Mesta/Nestos River (Mesta Karasu) in Bulgaria and northern Greece, forming the border between Greek Macedonia and Thrace
- A former name of the Haliacmon (ðnce Karasu) in western Macedonia, northern Greece
- Karasu (Istanbul), a river in the greater Istanbul area of Turkey
Central Asia
- Qarasu River, a small river in northeast Iran feeding into the southeast corner of the Caspian Sea
- Kara-Suu (Aksy), a right tributary of the river Naryn in Aksy District, Kyrgyzstan
- Kara-Suu (Kara-Köl), a left tributary of the river Naryn near Kara-Köl, Kyrgyzstan
- Karasu, name of the last stretch of river Shiderti, Kazakhstan
- Karasu (Koybagar), a river in Kostanay Region, Kazakhstan
- Karasu (Karasor), a river in Karaganda Region, Kazakhstan
Japan
Turkey
- Karasu (Euphrates), the western of the two major sources of the Euphrates in Eastern Anatolia
- Karasu (Hatay), a tributary of the Orontes River (formerly of Lake Amik) in Hatay Province, southeastern Turkey, bordering Syria
- A small river in northwest Anatolia, a tributary of the Sakarya River
Town and villages
Azerbaijan
China
Crimea
Japan
Kazakhstan
Kyrgyzstan
Tajikistan
Turkey
- Karasu, Sakarya, a town in Sakarya Province
- Karasu, Karacabey, a village in Bursa Province
- Karasu, Yenice, a village in ÃÂanakkale Province
- Karasu, Refahiye, a village in Erzincan Province
- Karasu, AÃ
Âkale, a mahalle in Erzurum Province
- Karasu, Karayazñ, a mahalle in Erzurum Province
Uzbekistan
- Karasu or Qorasuv, Andijan Province, adjacent to Kara-Suu, Kyrgyzstan
Fictional characters
Other uses
- Karasu, an album in the 13 Japanese Birds series by Merzbow
- Karasu Bay, a fictional bay in the air combat video game '
- Karasu relief, a rock relief in Turkey, near where the Karasu River, the western branch of the Euphrates, joins the eastern branch of the Euphrates
- Karasu, a species of giant beaked whale
People with the surname
- Carasso family, a Sephardic Jewish family of Salonika, often spelled Karasu
- Emmanuel Carasso (1862âÂÂ1934), lawyer and politician
- Isaac Carasso (1874âÂÂ1939), Emanuel's nephew, founder of Groupe Danone
- Daniel Carasso, Isaac's son, co-founder of Dannon in the U.S.
- Albert Karasu, Jewish-Turkish journalist
- Bilge Karasu (1930âÂÂ1995), Turkish writer
- OÃÂuzhan Karasu (born 1995), Turkish volleyball player