Byron M. Baer (October 18, 1929 – June 24, 2007) was an American Democratic Party politician from New Jersey who served in both houses of the New Jersey Legislature. He served in the New Jersey General Assembly from 1972 to 1993 and in the State Senate from 1994 to 2005, where he represented the 37th Legislative District. In the early 1970s, Baer was the primary author of the Open Public Records Act, New Jersey's Sunshine Law, and was an advocate of open government throughout his legislative career.