Hales is a surname. Notable people with the surname include
Alejandro Hales (1923-2001), Chilean politician
Alex Hales (born 1989), English cricketer
Alfred W. Hales, American mathematician
Derek Hales, English footballer
E. E. Y. Hales, English historian
Sir John Hales (1469/70–1540?), Baron of the Exchequer
James Hales (c. 1500–1554), English judge, son of above
John Hales, English theologian
John Hales (d.1571), English writer and politician
Robert Hales, English Lord High Treasurer
Robert Hales (director), British graphic designer and music video director
Robert D. Hales, Senior apostle in The Church of Jesus Christ of Latter-day Saints
R. Stanton Hales, American mathematician and educator
Samuel Hales (1615–1693), founding settler of Hartford and Norwalk, Connecticut
Stephen Hales, English physiologist, chemist and inventor
Thomas Hales (disambiguation), any of various people of this name
Thomas Hales (dramatist), Anglo-French dramatist and librettist of the 18th century
Thomas Callister Hales, American mathematician.
Tom Hales, IRA volunteer
Hales, a Triballi king
