- Source: Cahalan
Cahalan is a surname. Notable people with the surname include:
Adrienne Cahalan (born 1964), Australian sailor
Cissie Cahalan (1876–1948), Irish suffragette
Robert Cahalan (born 1946), American atmospheric scientist
Sinéad Cahalan, Irish camogie player
Susannah Cahalan (born 1985), American journalist and author
See also
Cahalane, surname