Hallam is a surname. Notable people with the surname include:
Albert Hallam, English cricketer
Anthony Hallam (born 1933), British palaeontologist
Arthur Hallam, poet
Chris Hallam (1962–2013), Welsh Paralympic athlete
Clint Hallam, the first hand transplant recipient
David Hallam, Member of the European Parliament
Henry Hallam, English historian
Kerry Hallam, British artist
Robert Hallam, bishop
Tracey Hallam, badminton player
William and Lewis Hallam, who brought professional theatre to North America