A–E edit

• Ada Adler
• Mary Eileen Ahern
• Camila Alire
• Edna Allyn – first librarian of the Hawaii State Library
• Lester Asheim
• Ashurbanipal II
• Sarah B. Askew – pioneered the establishment of county libraries in the United States
• Basil Atkinson
• Davinder Pal Singh – founder of the Panjab Digital Library
• Derek Austin
• Winifred Austin – pioneer of UK Library for the blind
• Henriette Avram – MARC standards developer
• Antoine Alexandre Barbier
• John Davis Barnett – Canada
• John J. Beckley – first Librarian of Congress; politician
• Pura Belpré – librarian and author
• Sanford Berman
• Bob Berring – law librarian
• John Carlo Bertot – library educator, researcher, editor of The Library Quarterly
• Anastasius Bibliothecarius
• James H. Billington – 13th librarian of Congress; historian
• Robert H. Blackburn – former chief librarian of the University of Toronto
• Thomas Bodley – founder of the Bodleian Library; English diplomat; 1545–1613
• Arna Bontemps – author, bibliographer, and Fisk University librarian
• Daniel J. Boorstin – 12th Librarian of Congress; historian
• Marjorie Adele Blackistone Bradfield – as the Detroit Public Library's first African-American librarian, expanded its African-American literature collection^[1]
• Aase Bredsdorff (1919–2017) – Danish library inspector specialising in children's literature
• Wallace Breem – novelist and law librarian
• Suzanne Briet
• Frank J. Burgoyne (1858–1913) – author and librarian at Lambeth Libraries
• Edward Dundas Butler – translator and senior librarian at the Department of Printed Books, British Museum
• Lee Pierce Butler
• Andrew Carnegie – Scottish-American industrialist and philanthropist who financed thousands of libraries around the world
• Leon Carnovsky
• Daniel J. Caron
• Amalia Kahana-Carmon
• Mayme Agnew Clayton
• Cecilia Cleve (d. 1819) – Swedish pioneer librarian
• Morris L. Cohen – attorney, law librarian and professor of law at the University at Buffalo, University of Pennsylvania, Harvard Law School and Yale Law School
• Marjorie Cotton – first professionally qualified children's librarian in New South Wales, Australia
• Andrea Crestadoro
• Charles Ammi Cutter
• Laura Dallapiccola – Italian librarian and translator
• John Cotton Dana (1856–1931)
• Robert Darnton
• Lorcan Dempsey
• Beryl May Dent – mathematical physicist, technical librarian at Metropolitan-Vickers, honorary secretary of ASLIB branch
• Melvil Dewey
• William S. Dix
• Leaonead Pack Drain-Bailey (1906–1983), Head of Library at West Virginia State University
• Mollie E. Dunlap
• Karl Franz Otto Dziatzko
• Linda Eastman
• Margaret A. Edwards
• El Sayed Mahmoud El Sheniti – seminal figure in professional librarianship in Egypt
• Theresa Elmendorf
• Miriam Eshkol
• Luther H. Evans – 10th Librarian of Congress
• Woody Evans
• Oliver Everett
• Chinwe Nwogo Ezeani – first female University Librarian at University of Nigeria, Nsukka

F–M edit

• Johann Albert Fabricius – bibliographer
• Mary Cutler Fairchild – pioneer library educator
• Adele M. Fasick – historical fiction writer, library science scholar, professor
• David Ferriero – former M.I.T librarian and current Archivist of the United States
• Anette Fischer (1946–1992) – librarian and human rights activist
• Herman H. Fussler
• Elizabeth Futas – director of the University of Rhode Island's Graduate School of Library and Information Studies
• Mary Virginia Gaver
• Helen Thornton Geer – ALA Headquarters librarian, author, consultant, and professor
• Johann Matthias Gesner – bibliographer
• Kenneth MacLean Glazier Sr. – Canadian librarian
• Eliza Atkins Gleason – first African American to receive doctorate of Library Science
• Frederick R. Goff – incunabula scholar
• Michael Gorman
• Jan Gruter – scholar
• Camilla Gryski
• Helen E. Haines
• Spencer Hall – librarian of the Athenaeum Club, London
• Adelaide Hasse
• Peter Havard-Williams – librarian educator
• Carla Hayden – public librarian, former ALA President, 14th Librarian of Congress
• Frances E. Henne
• Wolfgang Herrmann – librarian; member of Nazi Purification Committee
• Caroline Hewins
• John Howard Hickcox Sr.
• Ted Hines
• Cecil Hobbs – American scholar of Southeast Asian history, head of the Southern Asia Section of the Orientalia (now Asian) Division of the Library of Congress, a major contributor to scholarship on Asia and the development of South East Asian coverage in American library collections^[2]
• Judith Hoffberg – art librarian
• Zoia Horn – American librarian jailed for refusing to divulge information that violated her belief in intellectual freedom
• Laura E. Howey – American librarian, educator, social reformer
• Jean Blackwell Hutson – chief of Schomburg Center for Research in Black Culture
• Thomas James
• Anne Jarvis
• Thomas Jefferson – sold his library to the Library of Congress^[3]
• Charles Coffin Jewett
• Carleton B. Joeckel
• Virginia Lacy Jones – major figure in the integration of public and academic libraries
• Mildred M. Jordan – president of the Medical Library Association and medical librarian at Emory University
• E. J. Josey
• Gene Joseph – founding librarian of the Xwi7xwa Library at the University of British Columbia and the first librarian of First Nations descent in British Columbia, Canada
• Muhammad Siddiq Khan
• Mohammad Khatami – former President of Iran; previously Head of National Library of Iran
• Frederick Kilgour
• Mary A. Kingsbury – American school library pioneer
• Anastasiya Kobzarenko
• Judith Krug – forty-year leader of the American Library Association's Office of Intellectual Freedom
• Nadezhda Konstantinovna Krupskaya – wife of Lenin
• Frederick Wilfrid Lancaster
• Philip Larkin
• Louise Payson Latimer
• Margaret Leiteritz – painter who based her work of scientific items which she knew as a librarian
• Anne Grodzins Lipow – founder of Library Solutions Institute and Press
• Audre Lorde – 20th-century US poet and activist
• Eleanor Young Love – African-American librarian from Kentucky
• Seymour Lubetzky
• Roderick Samson Mabomba – Malawian librarian
• Archibald MacLeish – 9th Librarian of Congress; Pulitzer Prize poet
• Alison Macrina – founder of the Librarian Freedom Project
• Patrick Magruder – 2nd Librarian of Congress; politician
• Mary Helen Mahar – president of the New York Library Association in 1950
• Margaret Mann – library educator, particularly cataloging; founding faculty member at University of Michigan library science program (1926)
• Allie Beth Martin
• Harry S. Martin – former Head Librarian, Harvard Law Library
• Kathleen de la Peña McCook – library scholar, public librarian, free speech advocate, and author
• John Silva Meehan – 4th Librarian of Congress
• Florence Milnes – first BBC librarian
• August Molinier – French historian
• Eric Moon – editor of Library Journal
• Anne Carroll Moore – pioneering children's librarian
• Everett T. Moore – freedom of information
• Elizabeth Homer Morton – important contributions to development of Canadian libraries^[4]
• Isadore Gilbert Mudge – edited Guide to Resource Works
• L. Quincy Mumford – 11th Librarian of Congress
• Alan Noel Latimer Munby – English librarian, bibliographical scholar and author
• Ludovico Antonio Muratori – Italian librarian, archivist and historian
• Muskan Ahirwar – at 9 years old she created a community library for children in the worker's colony where she lives.

N–Z edit

• Gerhard Brandt Naeseth – Norwegian-American Genealogical Center and Naeseth Library in Madison, Wisconsin
• Makoto Nagao – 19th Director of National Diet Library of Japan; computer scientist specializing in digital library
• Bonnie Nardi – information scientist
• Gabriel Naudé
• Malcolm Neesam – county music and audiovisual librarian for York, England
• Howard Nixon
• Margaret Cross Norton
• Ekei Essien Oku – first Nigerian women chief librarian
• Paul Otlet
• John Henry Pyle Pafford
• Antonio Panizzi – chief librarian of the British Museum library
• Ingrid Parent – librarian at the University of British Columbia
• Charles V. Park – librarian at Central Michigan University
• Lotsee Patterson – librarian, educator, and founder of the American Indian Library Association
• Nancy Pearl – librarian and author
• Charles Peters – music cataloger at William & Gayle Cook Music Library, Indiana University^[5]
• Mary Wright Plummer
• Effie Louise Power
• Herbert Putnam – 8th Librarian of Congress
• S.R. Ranganathan – librarian and mathematician from India, known for his five laws of library science and the development of the colon classification
• Neil Ratliff
• W. Boyd Rayward
• Fremont Rider
• Jane, Lady Roberts (1949–2021) – UK Royal Librarian (2002–2013)
• Charlemae Hill Rollins
• Loriene Roy – first Native American president of the American Library Association
• Frances Clarke Sayers
• Louis A. Schultheiss
• Patricia G. Schuman
• Marvin H. Scilken
• Margaret Scoggin – young adult librarian
• Marianne Scott
• Ralph R. Shaw
• Spencer Shaw (1916–2010) – American children's librarian and educator
• Jesse Shera
• Louis Shores
• Regina Smith – librarian at Jenkins Law Library, a membership library in Philadelphia
• Frances Lander Spain (1903–1999) – American Library Association President 1960-61
• Ainsworth Rand Spofford – 6th Librarian of Congress
• John G. Stephenson – 5th Librarian of Congress
• Mari Strachan – 21st-century Welsh novelist in English
• Suetonius – Roman historian and archivist
• Peggy Sullivan
• Don R. Swanson
• Friedrich Sylburg – 16th-century German scholar
• John Szabo – City Librarian of the Los Angeles Public Library and National Medal for Museum and Library Service recipient
• Henry Richard Tedder – librarian of the Athenaeum Club, London
• Florence Davy Thompson – founding librarian at the University of Manitoba
• Louis Timothee – first American librarian
• Arnulfo Trejo – U.S. Hispanic-American librarian
• Gottfried van Swieten – Austrian Imperial librarian 1777–1803; introduced first card catalog
• Eva Verona
• Brian Campbell Vickery
• Douglas Waples
• George Watterston – 3rd Librarian of Congress
• Jessamyn West
• Edwina Whitney – librarian at the University of Connecticut
• John Wilkin – digital library management researcher
• Ian E. Wilson
• Louis Round Wilson
• Patrick Wilson
• Marianne Winder – librarian at the Wellcome Institute for the History of Medicine
• Justin Winsor – Harvard University librarian
• Mary Elizabeth Wood – promoted Western librarianship practices and programs in China
• Lawrence C. Wroth – librarian at the John Carter Brown Library at Brown University
• Ella Gaines Yates
• Victor Yngve
• John Russell Young – 7th Librarian of Congress; journalist
• Zenodotus – first superintendent of Library of Alexandria; scholar of the 3rd century BC
• Shen Zurong – father of library science in China

• Reinaldo Arenas – Cuban author
• Ben Barkow
• Roland Barthes – French writer and philosopher
• Georges Bataille – French writer
• Ludwig Bechstein – German author
• Thomas Berger – American novelist
• Hector Berlioz – French composer; librarian, Paris Conservatoire
• Arna Bontemps – French artist
• Jorge Luis Borges – author and poet
• John Braine – British novelist
• Emma L. Brock – children's book author and illustrator, and librarian at the Minneapolis Public library and NYPL^[6]
• Dee Brown – wrote Bury My Heart at Wounded Knee
• Callimachus – poet
• Roch Carrier – novelist
• Lewis Carroll – author
• Giacomo Casanova
• Isaac Casaubon
• Cassiodorus
• Beverly Cleary – novelist
• Joanna Cole – children's book author and librarian
• Ina Coolbrith – poet and librarian
• Frank Coombs – U.S. politician; State Librarian of California, 1898-1899
• Gratia Countryman – Minneapolis librarian
• Pierre François le Courayer – 18th-century theologian
• Evelyn Crowell – librarian, author, speaker, activist, and community organizer
• Harinath De – linguist
• John Dee – Renaissance magician
• A. Brian Deer – librarian from Kahnawake who developed a library classification system that gave rise to the Brian Deer Classification System
• Hal Draper
• Marcel Duchamp
• Will Durant – historian
• Eratosthenes
• Frank Ferko – composer
• Benjamin Franklin
• Stephen Gaselee – diplomat
• Edmund Gosse
• Ed Greenwood – author
• Francis Hayman – English artist
• Elizabeth Heaps
• Edward Singleton Holden – U.S. astronomer
• J. Edgar Hoover – first director of the Federal Bureau of Investigation
• David Hume – philosopher
• Hypatia (c. 350–370 – March 415)
• Mohammad Khatami – Iranian president and scholar
• Annette Curtis Klause – author of children's books
• Stanley Kunitz – former United States Poet Laureate; editor of Wilson Library Bulletin, 1927-1943
• Lao Tsu
• Madeleine L'Engle – 20th-century novelist
• Gottfried Wilhelm von Leibniz – mathematician and philosopher
• Gotthold Ephraim Lessing – German playwright and poet
• Wilhelm Lexis – German economist
• Li Dazhao – Chinese revolutionary politician
• Audre Lorde – 20th-century US poet and activist
• Archibald MacLeish – author; Librarian of Congress, 1939–1944
• Mao Zedong – Chinese revolutionary politician
• Vaunda Micheaux Nelson – author and librarian
• Andre Norton – science-fiction author
• Walter A. O'Brien – U.S. politician; commissioned original version of the song "Charlie on the M.T.A."
• Christopher Okigbo – Nigerian poet
• Major Owens – U.S. House of Representatives (D-NY)
• Andrew K. Pace – author
• Coventry Patmore – 19th-century UK poet
• Kit Pearson – Canadian writer; winner of the 1997 Governor General's Award for English language children's literature
• Benjamin Peirce – logician
• Per Petterson – Norwegian author
• Charles Pickering
• Marcel Proust – French author
• Philip Pullman – fantasy novelist
• Ken Roberts – author
• Greg Dean Schmitz – online film journalist
• Eleanor Roosevelt Seagraves – granddaughter of Franklin D. Roosevelt
• Steve Roud (b. 1949) – creator of the Roud Folk Song Index and authority on folklore and superstition
• Sima Qian – Chinese historian
• Lynne Stewart – American lawyer
• June Tabor – British singer
• Elizabeth Taylor
• Edward J. Thomas – scholar of Buddhism
• Anne Tyler – novelist
• Wallace Van Jackson – American librarian and civil rights activist
• Angus Wilson – novelist

Librarians noted as spouses of national leaders edit

• Laura Bush – served as First Lady of the United States^[7] married to president, George W.Bush
• Ingrid Carlsson – wife of Ingvar Carlsson
• Miriam Eshkol – wife of Israeli Prime Minister Levi Eshkol.
• Nadezhda Krupskaya – wife of Vladimir Lenin

• List of fictional librarians
• List of female librarians
• List of libraries