Rosenblatt is a surname of German origin, meaning "rose leaf". People with this surname include:
Albert Rosenblatt (born 1936), New York Court of Appeals judgeDana Rosenblatt, known as "Dangerous" (born 1972), American boxerFrank Rosenblatt (1928–1971), American computer scientistGary Rosenblatt (born 1947), American journalistJay S. Rosenblatt (1923–2014), American psychologist and animal behavior researcherJohn R. Rosenblatt (1907–1979), mayor of Omaha, NebraskaJonathan Rosenblatt (born 1956), American RabbiLouise Rosenblatt (1904–2005), American literary criticMurray Rosenblatt (born 1926), American statisticianPaul Gerhardt Rosenblatt (born 1928), American judgeRichard Rosenblatt (born 1969), American businessmanRoger Rosenblatt (born 1940), American journalist, author, playwright and teacherRose Rosenblatt (born 1947), American film directorSultana Levy Rosenblatt (1910–2007), Brazilian writerSusan Rosenblatt, later Susan Sontag (1933–2004), American author, filmmaker, philosopher, literary theorist and political activistTherese Steinhardt Rosenblatt (1896–1920), American painterWibrandis Rosenblatt (1504–1564), German Christian active in the Protestant ReformationWilliam Rosenblatt (1906–1999), New York state senatorYossele Rosenblatt (1882–1933), Ukrainian-born Jewish cantor