Blatt is a surname. Notable persons with that name include:
David Blatt (born 1959), Israeli-American basketball player and coach
Genevieve Blatt (1913–1996), American judge and politician from Pennsylvania
Josephine Blatt (1869–1923), American strongwoman
Leah Blatt Glasser (born 1950), American literary critic and scholar
Melanie Blatt (born 1975), British singer and actress
Nicolae Blatt (1890–1965), Romanian ophthalmologist, surgeon, and medical researcher
Rainer Blatt (born 1952), German-Austrian physicist
Solomon Blatt, Sr. (1895–1986), American politician from South Carolina
Solomon Blatt, Jr. (1921–2016), American federal district judge from South Carolina
Sidney Blatt (1928–2014), American psychiatry and psychology professor
Thomas Blatt (1927–2015), Polish-American writer and speaker, survived Sobibor extermination camp
Warren Blatt (born 1962), American genealogist and computer engineer
