Blatt is a surname. Notable persons with that name include:
David Blatt (born 1959), Israeli-American basketball player and coachGenevieve Blatt (1913–1996), American judge and politician from PennsylvaniaJosephine Blatt (1869–1923), American strongwomanLeah Blatt Glasser (born 1950), American literary critic and scholarMelanie Blatt (born 1975), British singer and actressNicolae Blatt (1890–1965), Romanian ophthalmologist, surgeon, and medical researcherRainer Blatt (born 1952), German-Austrian physicistSolomon Blatt, Sr. (1895–1986), American politician from South CarolinaSolomon Blatt, Jr. (1921–2016), American federal district judge from South CarolinaSidney Blatt (1928–2014), American psychiatry and psychology professorThomas Blatt (1927–2015), Polish-American writer and speaker, survived Sobibor extermination campWarren Blatt (born 1962), American genealogist and computer engineer