John Jacob Abel 💼 Biochemist, pharmacologist, physician, university teacher, pharmacist, endocrinologist John Jacob Astor IV 💼 Entrepreneur, inventor, writer, science fiction writer, racing automobile driver, passenger John Jakes 💼 Writer, novelist, science fiction writer, television actor John Jakopin 💼 Ice hockey player John James Audubon 💼 Botanist, ornithologist, painter, zoologist, scientific illustrator, writer, photographer, draftsperson, printmaker, naturalist, bird illustrator, botanical collector, scientific collector John James Grant 💼 Military personnel, politician John Jay 💼 Judge, lawyer, diplomat, politician John Jeffries 💼 Physician, surgeon, meteorologist, balloonist, physicist John Jensen 💼 Association football player, association football coach John Joachim 💼 Rower John Jonas 💼 Engineer, metallurgist John Jones Ross 💼 Politician, physician John Joseph Connolly 💼 Lawyer, politician, university teacher John Joseph Curran 💼 Lawyer, politician, judge John Joseph Lynch 💼 Catholic priest, catholic bishop John Joseph Malone 💼 Military personnel John Joseph of Austria 💼 Politician, military personnel John Julius Norwich 💼 Television presenter, politician, historian, diplomat, writer, aristocrat John K. Lawson 💼 Military personnel John K. Samson 💼 Singer-songwriter, bassist, singer, guitarist, composer John Kander 💼 Composer, motorcyclist, film score composer, screenwriter John Kani 💼 Stage actor, film actor, writer, actor, film director, screenwriter, playwright, director, author John Kapelos 💼 Film actor, television actor John Kasich 💼 Politician, businessperson, banker, investment banker, writer, television presenter John Kassir 💼 Actor, dub actor, television actor, voice actor John Katko 💼 Politician, lawyer, employee John Katzenbach 💼 Writer, screenwriter, novelist, journalist, court reporter John Keats 💼 Poet, judge-rapporteur, physician, writer John Keegan 💼 Journalist, military historian, historian, teacher John Keel 💼 Journalist, ufologist, writer, screenwriter John Kendrew 💼 Biochemist, molecular biologist, chemist, crystallographer, biophysicist, researcher John Kennedy (Louisiana politician) 💼 Politician, lawyer John Kennedy Toole 💼 Writer, novelist, military personnel, professor, screenwriter, journalist John Kenneth Galbraith 💼 Economist, diplomat, politician, university teacher, non-fiction writer, writer, ambassador John Kenneth Gormley 💼 Lawyer, politician, broadcaster, radio pundit, journalist John Kent Harrison 💼 Film director, screenwriter, television director, director John Kerry 💼 Politician, naval officer, lawyer, diplomat, aircraft pilot, peace activist, climate activist John Key 💼 Politician, economist John Kiffmeyer 💼 Drummer, musician, record producer, composer John Kilian 💼 Writer, translator, parson, lutheran pastor, poet John King Fairbank 💼 Historian, university teacher, writer, educator John Kinnamos 💼 Historian, writer John Kirk Townsend 💼 Explorer, zoologist, ornithologist, botanist, naturalist John Kitzhaber 💼 Politician, physician John Kitzmiller 💼 Actor, film actor John Knoll 💼 Visual effects supervisor, engineer, computer scientist, writer, programmer, film producer John Knowles Paine 💼 Composer, music educator John Knox 💼 Theologian, christian minister, writer, politician John Kocinski 💼 Motorcycle racer John Komlos 💼 Economic historian, university teacher John Konesky 💼 Guitarist John Kordic 💼 Ice hockey player John Krasinski 💼 Screenwriter, actor, film producer, film director, television actor, stage actor, film actor, voice actor, television producer John Kricfalusi 💼 Animator, voice actor, actor, blogger, film director, screenwriter John Krol 💼 Catholic priest, catholic bishop John Kucera 💼 Alpine skier John Kuck 💼 Athletics competitor John Kufuor 💼 Politician, lawyer, businessperson John Kundla 💼 Basketball player, basketball coach John Kunkel Small 💼 Curator, botanist, pteridologist, bryologist, botanical collector, scientific collector