Bloom is a surname. Notable people with the surname include:
Adam Bloom (born 1971), English comedian
Alan Bloom (1906–2005), English nurseryman
Allan Bloom (1930–1992), American philosopher and author
Andy Bloom (born 1973), American Olympic shot putter
Benjamin Bloom (1913–1999), American educator
Benjamin Bloom (musician) (born 1982), English musician
Bill Bloom (born 1948), American songwriter and musician
Bobby Bloom (1945–1974), American singer songwriter best known as one hit wonder for "Montego Bay" in 1970
Claire Bloom (born 1931), British actor
David Bloom (1963–2003), NBC journalist
Harold Bloom (born 1930), American literary critic
Harry Bloom (1913–1981), South African novelist and activist
Howard Bloom (born 1943), American author
Hyman Bloom (1913–2009), American artist
Jeremiah B. Bloom (1913–1983), New York state senator
Jeremy Bloom (born 1982), American athlete
John Bloom (disambiguation), several people
Lily Bloom, French actress
Luka Bloom (born 1955), Irish musician
Mark Bloom (born 1987), American soccer defender
Matt Bloom (born 1972), American wrestler
Moses Bloom (1833–1893), American politician, mayor of Iowa City
Myer Bloom (1928 – 2016), Canadian physicist
Orlando Bloom (born 1977), English actor
Philip Bloom (disambiguation), several people
Rachel Bloom (born 1987), American actress
Rube Bloom (1902–1976), American composer
Steve Bloom (born 1953), photographer
Ursula Bloom (1892–1984), English writer
Verna Bloom (born 1939), American actress, best known for role in Animal House
William Bloom (born 1948), British educator