Brian Joe Lobley Berry (16 February 1934 – 2 January 2025) was a British-American human geographer and city and regional planner.

He was the Lloyd Viel Berkner Regental Professor in the School of Economic, Political and Policy Sciences at the University of Texas at Dallas.

His urban and regional research in the 1960s sparked geography’s social-scientific revolution and made him the most-cited geographer for more than 25 years.

From 1976 to 1981 Berry was the Frank Backus Williams Professor of City and Regional Planning in the Graduate School of Design, chair of the PhD Program in Urban Planning and professor in sociology in the Faculty of Arts and Sciences, director of the Laboratory for Computer Graphics and Spatial Analysis and a faculty fellow of the Institute for International Development at Harvard, and following that was appointed University Professor of Urban Studies and Public Policy and dean of the Heinz College at Carnegie Mellon University for a period of 5 years.

In 1986 he joined the University of Texas at Dallas, occupying the Lloyd Viel Berkner Regental Professorship, and becoming founding dean of the School of Economic, Political and Policy Sciences.

He was an active family historian and genealogist, with many additional publications to his name, most recently delving into genetic genealogy, where testing by FamilyTreeDNA documents his y-Dna to be the Bell-Beaker R-L21>A5846>A5840>A5835>Y18815>Y42681, which he shared with descendants of John Berry of Honley in Yorkshire (1510-1569), and his mitochondrial DNA to be T2f1a1.