Patrick Doreian is an American mathematician and social scientist, whose specialty is network analysis. His specific research interests include blockmodeling, social structure and . Doreian, Professor Emeritus from the University of Pittsburgh in Sociology and Statistics, was during his research career focused on social network research, especially regarding temporal networks, , , signed networks, and the US Supreme Court. He was also an (co)editor of (1982–2005) and Social Networks (2006–2015).