Horovitz is a surname, and may refer to:
Ad-Rock (born 1966), stage name of Adam Horovitz of the Beastie Boys
Adam Horovitz (poet) (born 1971), British poet
Béla Horovitz (1898-1955), Hungarian-born British publisher
David Horovitz (born 1962), an author and political commentator (cousin of Alex Horovitz)
Frances Horovitz (1938-83) English poet and broadcaster
Gillian Horovitz (born 1955), English long-distance runner
Hannah Horovitz (1936-2010), British classical music promoter
Israel Horovitz (born 1939), American playwright and screenwriter
Joseph Horovitz, Austrian-English composer
Michael Horovitz (born 1935), English poet
Robert Horovitz, a medical biologist and Nobel Prize winner