De Witt is a surname of Dutch origin meaning "the white". In America, the name is usually concatenated to DeWitt. Notable people with the surname include:
- Alexander De Witt (1798âÂÂ1879), American politician
- (1824âÂÂ1909), French politician
- (1828âÂÂ1889), French politician
- David M. De Witt (1837âÂÂ1912), American politician
- Elmo De Witt (died 2011), South African filmmaker
- Francis B. De Witt (1849âÂÂ1929), American politician
- Henriette Guizot de Witt (1829âÂÂ1908), French writer
- Jacob De Witt (1785âÂÂ1859), Canadian politician
- Jacob H. De Witt (1784âÂÂ1857), American politician
- Marguerite de Witt (1853âÂÂ1924), French activist, daughter of Conrad and Henriette
- Pauline de Witt (1831âÂÂ1874), French historian
- Rocky De Witt (1959âÂÂ2025), American politician
- Simeon De Witt (1756âÂÂ1834), American cartographer
See also