Ditt is a surname and a given name. Notable people with the name include:
Surname: Josephine Ditt (1868–1939), American film actress
Given name: Guran Ditt Kumar, Indian revolutionary associated with the pioneers of the Gadhar movement Giani Ditt Singh or Ditt Singh (1850–1901), historian, scholar, poet, editor and Singh Sabha reformer
See also Ditt Apotek, chain of 80 independent pharmacies on franchise from Norsk Medisinaldepot Ditt Inre, indie duo from Stockholm, Sweden, consisting of Hampus Klint and Einar Andersson