Peter Abell (born 1939) is a British social scientist, currently professor emeritus at the London School of Economics where he has founded and directed the "Interdisciplinary Institute of Management".

[1] He has been teaching for many years at LSE's Department of Management,[2] managerial economics and strategy group.

He is known for his contribution to mathematical social science, both quantitative and qualitative.

He is the author of several books on methodology and individual participation and co-operation[3] and currently focuses on an approach he coined Bayesian narratives and on network analysis particularly the role of signed structures in group formation and identity change.

During the 1960s Abell was involved in demonstrations organised by the Committee of 100 in Trafalgar Square[4] and in his youth advocated for civil disobedience and nuclear disarmament.