Festing is a surname. Notable people with the surname include:
Andrew Festing (born 1941), English portrait painter Edward Robert Festing (1839–1912), English major-general, chemist, and first Director of the Science Museum in London Sir Francis Festing (1902–1976), British field marshal Sir Francis Worgan Festing (1833–1886), British Royal Marines major-general John Festing (1837–1902), English clergyman who became Bishop of St Albans Matthew Festing (1949–2021), English Grand Master of the Sovereign Military Order of Malta Michael Festing, British research scientist Michael Christian Festing (1705–1752), English violinist and composer Sally Festing (born 1938), British biographer and poet Simon Festing, British activist and executive director of the Research Defence Society
See also Festing penny