Dalby is a Scandinavian place name meaning "valley settlement", during the Viking Age, the name was brought to England and it later also became an English surname. It can be a locational surname for those from Dalby, Lincolnshire, near Spilsby; in Dalby, Leicestershire near Melton Mowbray, and in Dalby, North Yorkshire near Terrington. Notable people with the surname include:
Amy Dalby, British actress
Andrew Dalby, Culinary writer
Andy Dalby, guitarist
Dave Dalby, former NFL football player
David Dalby, British linguist, founder of Linguasphere Observatory
Graham Dalby, British Band Leader The London Swing Orchestra
Greg Dalby, American soccer player
Liza Dalby, American anthropologist and writer
Mark Dalby (1938–2013), British Anglican Archdeacon
Nicolas Dalby, Danish mixed martial artist
Robert Dalby, English martyr
William Bartlett Dalby (1840–1918), British aural surgeon and otologisthe
