Harrold is a surname in the English language. In some cases the name may be an Anglicised form of the Irish Ó hArailt.
People with the surname Harrold include:
Arthur Harrold (1854–1908), businessman and politician in South Australia
Bert Harrold (1898–1968), Australian Rules footballer in Western Australia
Harrold Brothers, Australian merchants and shipping company
Jimmy Harrold (1892–1950), English footballer
Kathryn Harrold (born 1950), American actress
Luke Harrold (born 2008), New Zealand freestyle skier
Mary Jean Harrold (1947–2013) American computer scientist
Orville Harrold (1878–1933), American operatic tenor and musical theatre actor
Rowland Harrold (1865–1924), South Australian dermatologist
Sid Harrold, English footballer
Thomas Leonard Harrold (1902–1973), US Army officer
William Harrold (born 1988), English professional golfer