Holladay is a surname. Notable people with the surname include:
Albert L. Holladay (1805–1856), American Presbyterian minister and educator
Alexander Holladay (1811–1877), American politician and lawyer
Alexander Q. Holladay (1839–1909), American politician and lawyer
Ben Holladay (1819–1887), American transportation businessman
Chloe Holladay, American majorette
David Holladay (1954–2024), American computer programmer
John Holladay (1798–1862), American pioneer
Terry Holladay (born 1955), American tennis player
Wilhelmina Holladay (1922–2021), American art collector and patron