Betham is a surname. Notable people with the surname include:
Asa Betham (1838–?), United States Navy sailor and Medal of Honor recipient Cecilia Betham (1843–1913), Irish archer Fred Betham (1915–1984), Samoan politician and diplomat Geoffrey Betham (1899–1962), English cricketer and British Indian Army officer Jaclyn Betham (born 1986), American actress and ballet dancer John Betham (1642?–1709), English Catholic priest and tutor to James Francis Edward Stuart Mary Matilda Betham (1776–1852), English poet and painter Matilda Betham-Edwards (1836–1919), English novelist and travel writer Monty Betham (born 1978), New Zealand boxer and rugby league footballer Monty Betham (boxer) (born 1952), New Zealand boxer Peter Betham (born 1989), New Zealand rugby union player Richard Betham (), Samoan boxer Stephen Betham, Samoan rugby union coach Thomas de Betham (), English politician William Betham (1749–1839), English clergyman and antiquarian William Betham (1779–1853), English herald and antiquarian who held the office of Ulster King of Arms
See also Beetham (disambiguation) Bentham (surname)