Sarasin is a surname, originating (unrelatedly) in Switzerland and Thailand.

• Arsa Sarasin (born 1936), Thai diplomat and businessman
• Edouard Sarasin (1843–1917), Swiss scientist
• Fritz Sarasin (1859–1942), full name Karl Friedrich Sarasin, Swiss naturalist
• Jakob Sarasin (1742–1802), Swiss manufacturer and writer in the Age of Enlightenment
• Jean François Sarrazin (c. 1611–1654), or Sarasin, French author
• Kanit Sarasin (born 1964), Thai actor
• Pao Sarasin (1929–2013), Thai politician and policeman
• Paul Sarasin (1856–1929), full name Paul Benedict Sarasin, a Swiss naturalist
• Pong Sarasin (born 1927), Thai businessman and politician
• Pote Sarasin (1905–2000), Thai diplomat and politician
• Ronald A. Sarasin (born 1934), U.S. Representative from Connecticut
• Thian-hee Sarasin (1848–1925), Thai physician

• Sarasin family
• Sarasin's goby
• All pages with titles containing Sarasinorum for species named for the Sarasins
• J. Safra Sarasin, a Swiss private bank