Bonnie Siegler (born 1963) is a New York-based graphic designer. She is the founder of the design studio Eight and a Half and, before that, co-founded the design studio Number Seventeen. Her clients include Participant Media, Late Night with Seth Meyers, Saturday Night Live, HBO, Brooklyn Public Library, Maveron, Random House, The Criterion Collection,[2] The New York Times, Nickelodeon, and the Frank Lloyd Wright Foundation.