Stephen N. Adubato Sr. was an American teacher, union organizer, and Democratic Party politician from Newark, New Jersey. As a leader in the city's North Ward and the legislative representative of the New Jersey Federation of Teachers, Adubato was a powerful éminence grise and power broker in local, county, and state politics, mentoring numerous Democratic Party figures but never holding an elected public office himself. His brother Michael and son Steve Jr. represented Newark and its suburbs in the New Jersey General Assembly from 1974 to 1992 and 1984 to 1986, respectively.