Cudahy is an Irish surname, related to the name "Cuddihy" and is native to Counties Cork and Tipperary. The Irish form of this name would be written as Ó Cuidighthigh (male) or Ní Chuidighthigh (female). It may refer to:
Surname Anthony Cudahy (born 1989), American painter Edward Cudahy Jr. (1885–1966), American kidnapping victim; M. Cudahy's nephew John Cudahy (1887–1943), American real estate developer and diplomat Michael Cudahy (electronics) (born 1924–2022), American entrepreneur Michael Cudahy (industrialist) (1841–1910), American founder of Cudahy Packing Company Patrick Cudahy (1849–1919), American industrialist Richard Dickson Cudahy (1926–2015), American jurist
Places Cudahy, California Cudahy, Wisconsin
Other Cudahy Packing Company
See also Cody (given name), in some cases another variant of Ó Cuidighthigh