Stephen Peter Munisteri (born December 25, 1957) is an American attorney who served as the chairman of the Republican Party of Texas from 2010 to 2015. In 2017, Munisteri was appointed to the White House staff as deputy assistant to the president and principal deputy director of the Office of Public Liaison. Munisteri stepped down as party chairman to join U.S. Senator Rand Paul of Kentucky as a senior advisor to Paul's 2016 presidential campaign.