Robert W. Balluffi Emeritus (elected 1982)
April 18, 1924 - December 8, 2022

David Baltimore Member (elected 1974)
California Institute of Technology
Primary: 44, Microbial Biology
Secondary: 43, Immunology and Inflammation

Fritz Baltzer International Member (elected 1967)
March 12, 1884 - March 18, 1974

Nenad Ban International Member (elected 2021)
ETH Zurich
Primary: 29, Biophysics and Computational Biology
Secondary: 21, Biochemistry

Mahzarin R. Banaji Member (elected 2018)
Harvard University
Primary: 52, Psychological and Cognitive Sciences
Secondary: 53, Social and Political Sciences

Wilder Bancroft Member (elected 1920)
October 1, 1867 - February 7, 1953

Utpal Banerjee Member (elected 2018)
University of California, Los Angeles
Primary: 26, Genetics

Abhijit Banerjee Member (elected 2020)
Massachusetts Institute of Technology
Primary: 54, Economic Sciences

Jillian F. Banfield Member (elected 2006)
University of California, Berkeley
Primary: 15, Geology
Secondary: 62, Plant, Soil, and Microbial Sciences

Harlan P. Banks Member (elected 1980)
September 1, 1913 - November 22, 1998

Martin S. Banks Member (elected 2019)
University of California, Berkeley
Primary: 52, Psychological and Cognitive Sciences
Secondary: 28, Systems Neuroscience

Thomas Banks Member (elected 2023)
Rutgers, The State University of New Jersey, New Brunswick
Primary: 13, Physics
Secondary: 12, Astronomy

Dafna Bar-Sagi Member (elected 2020)
New York University
Primary: 41, Medical Genetics, Hematology, and Oncology

Ofer Bar-Yosef Member (elected 2001)
August 29, 1937 - March 14, 2020

Phil S. Baran Member (elected 2017)
Scripps Research
Primary: 14, Chemistry

Mariano Barbacid International Member (elected 2012)
Spanish National Cancer Research Center (CNIO)
Primary: 41, Medical Genetics, Hematology, and Oncology

Paul F. Barbara Member (elected 2006)
April 24, 1953 - October 31, 2010

Stanley A. Barber Member (elected 1987)
March 29, 1921 - December 12, 2002

Thomas Barbour Member (elected 1933)
August 19, 1884 - January 8, 1946

Joseph Barcroft International Member (elected 1939)
July 26, 1872 - March 21, 1947

Allen J. Bard Member (elected 1982)
December 18, 1933 - February 11, 2024

Philip Bard Member (elected 1944)
October 25, 1898 - April 5, 1977

Edouard G. Bard International Member (elected 2014)
College de France
Primary: 15, Geology
Secondary: 16, Geophysics

John Bardeen Member (elected 1954)
May 23, 1908 - January 30, 1991

William A. Bardeen Member (elected 1999)
Fermi National Accelerator Laboratory
Primary: 13, Physics

James M. Bardeen Member (elected 2012)
May 9, 1939 - June 20, 2022

Grigory I. Barenblatt International Member (elected 1997)
July 10, 1927 - June 21, 2018

Elso S. Barghoorn Member (elected 1967)
June 30, 1915 - January 27, 1984

Cornelia I. Bargmann Member (elected 2003)
The Rockefeller University
Primary: 24, Cellular and Molecular Neuroscience
Secondary: 26, Genetics

Valentine Bargmann Member (elected 1979)
April 6, 1908 - July 20, 1989

Ralph S. Baric Member (elected 2021)
The University of North Carolina at Chapel Hill
Primary: 44, Microbial Biology

Carolina Barillas-Mury Member (elected 2014)
National Institutes of Health
Primary: 44, Microbial Biology
Secondary: 61, Animal, Nutritional, and Applied Microbial Sciences

Barry C. Barish Member (elected 2002)
Stony Brook University, The State University of New York
Primary: 13, Physics
Secondary: 12, Astronomy

Alice Barkan Member (elected 2020)
University of Oregon
Primary: 62, Plant, Soil, and Microbial Sciences
Secondary: 25, Plant Biology

George Barker Member (elected 1876)
July 14, 1835 - May 24, 1910

H. A. Barker Emeritus (elected 1953)
November 29, 1907 - December 24, 2000

Frederick A. P. Barnard Member (elected 1863)
May 5, 1809 - April 27, 1889

Edward Barnard Member (elected 1911)
December 16, 1857 - February 6, 1923

John Barnard Member (elected 1863)
May 19, 1815 - May 14, 1882

Carol A. Barnes Member (elected 2018)
University of Arizona
Primary: 28, Systems Neuroscience
Secondary: 52, Psychological and Cognitive Sciences

Joachim Barrande International Member (elected 1867)
August 11, 1799 - October 5, 1883

Rodolphe Barrangou Member (elected 2018)
North Carolina State University
Primary: 26, Genetics
Secondary: 62, Plant, Soil, and Microbial Sciences

Joseph Barrell Member (elected 1919)
December 15, 1869 - May 4, 1919

Ben A. Barres Member (elected 2013)
September 13, 1954 - December 27, 2017

Christopher B. Barrett Member (elected 2022)
Cornell University
Primary: 64, Human Environmental Sciences
Secondary: 54, Economic Sciences

C. S. Barrett Emeritus (elected 1967)
September 28, 1902 - June 14, 1994

Spencer C.H. Barrett International Member (elected 2020)
University of Toronto
Primary: 27, Evolutionary Biology
Secondary: 63, Environmental Sciences and Ecology

Charles Barrois International Member (elected 1908)
August 21, 1851 - November 5, 1939

H. H. Barschall Member (elected 1972)
April 29, 1915 - February 4, 1997

David P. Bartel Member (elected 2011)
Massachusetts Institute of Technology
Primary: 21, Biochemistry