Elwin may refer to:

  • Elwen, Cornish saint
  • Elwin, Illinois, United States, an unincorporated community
  • Hastings Elwin (1776-1852), British-Australian politician
  • Whitwell Elwin (1816 -1900), British clergyman and editor
  • Maurice Elwin (1896–1975), British singer and songwriter, real name Norman Blair
  • Verrier Elwin, (1902–1964), British-Indian anthropologist and ethnologist
  • Ross Elwin (born 1946), retired Australian rules football player