| Co-Nobelist in Medicine: 1954 | 29 |
| Co-Nobelist in Medicine: 1947 | 29 |
| Co-Nobelist in Literature: 1966 | 31 |
| Co-Nobelist in Literature: 1904 | 31 |
| Co-Nobelist in Chemistry: 1950 | 30 |
| Co-Nobelist in Chemistry: 1946 | 30 |
| Co-Nobelist for Peace: 1978 | 27 |
| Co-Nobelist for Peace: 1925 | 27 |
| Co-Nobelist for Peace: 1907 | 27 |
| Co-Nobelist Arafat | 18 |
| Co-landlord of classic TV | 25 |
| Co-inventor of the rerun | 24 |
| Co-inventor of cordite | 22 |
| Co-host with Richard Roeper | 27 |
| Co-host with Philbin | 20 |
| Co-host with Kelly | 18 |
| Co-host of morning TV | 21 |
| Co-host of Meredith, Ann, and Al | 32 |
| Co-host Kelly | 13 |
| Co-hero at Ticonderoga: 1775 | 28 |
| Co-founding SkyTeam airline | 27 |
| Co-founder of Time magazine | 27 |
| Co-founder of the Smashing Pumpkins with Corgan | 47 |
| Co-founder of the Psychological Wednesday Society | 49 |
| Co-founder of the political movement "Bagism" | 55 |
| Co-founder of the Nonaligned Movement | 37 |
| Co-founder of the Non-Aligned Movement, 1961 | 44 |
| Co-founder of the N.A.A.C.P. | 28 |
| Co-founder of the Blue Four movement | 36 |
| Co-founder of the avant-garde Blue Four | 39 |
| Co-founder of the Actors Studio | 31 |
| Co-founder of the 2007 Live Earth concerts | 42 |
| Co-founder of Standard Oil and developer of Florida's east coast | 68 |
| Co-founder of Shady Records | 27 |
| Co-founder of Rome | 18 |
| Co-founder of Ms. | 17 |
| Co-founder of MGM | 17 |
| Co-founder of Jay-Z's Roc-A-Fella Records | 45 |
| Co-founder of Duxbury, Mass. | 28 |
| Co-founder of Death Row Records | 31 |
| Co-founder of Dadaism | 21 |
| Co-founder of Current TV | 24 |
| Co-founder of Beats Electronics | 31 |
| Co-founder of Air Greenland | 27 |
| Co-founder of A&M Records with Jerry Moss | 45 |
| Co-founder of a California winery | 33 |
| Co-firing technique used to reduce pollution from electrical power plants | 73 |
| Co-fighter | 10 |
| Co-feeder of the Humber | 23 |
| Co-explorer of 1804 | 19 |
| Co-ed quarters | 14 |
| Co-ed inst. overlooking the Hudson | 34 |
| Co-discoverers of DNA | 21 |
| Co-discoverer of insulin | 24 |
| Co-discoverer of cosmic rays Victor | 35 |
| Co-discoverer of a genetic structure | 36 |
| Co-designee as Time's 1993 Man of the Year | 46 |
| Co-defendant? | 13 |
| Co-defendant with Vanzetti | 26 |
| Co-creator of" Lost" | 30 |
| Co-creator of Yogi, Quick Draw, et al. | 38 |
| Co-creator of Yogi and Boo Boo | 30 |
| Co-creator of the thumb index? | 30 |
| Co-creator of the Reitwagen, the first internal-combustion motorcycle | 69 |
| Co-creator of the Oblique Strategies playing cards | 50 |
| Co-creator of the Hulk | 22 |
| Co-creator of the Fantastic Four | 32 |
| Co-creator of the ambient music app Scape | 41 |
| Co-creator of Spider-Man | 24 |
| Co-creator of Sir Roger de Coverley | 35 |
| Co-creator of Hulk and Thor | 27 |
| Co-creator of Dungeons & Dragons | 36 |
| Co-creator of Curious George | 28 |
| Co-creator of a law of radiation | 32 |
| Co-creator of "Twin Peaks" | 36 |
| Co-creator of "Tom and Jerry" | 39 |
| Co-creator of "The View" | 34 |
| Co-creator of "The Flintstones" | 41 |
| Co-creator of "Charlie's Angels'' | 50 |
| Co-conspirator of Brutus | 24 |
| Co-composer of the "Prophecy Theme" in "Dune" | 65 |
| Co-composer of "Johnny's Theme" | 45 |
| Co-chair of John McCain's 2007-'08 presidential campaign | 64 |
| Co-beneficiary | 14 |
| Co-author of tale of Capt. Bligh | 32 |
| Co-author of Nick Carter stories | 32 |
| Co-author of an advice column | 29 |
| Co-author of a 1930 tariff act | 30 |
| Co-author of 2012's "Jews and Words" | 50 |
| Co-author of "We Accuse" | 34 |
| Co-author of "The Communist Manifesto" | 48 |
| Co-author of "Tales from Shakespeare" | 47 |
| Co-author of "Nice Guys Finish Last" | 46 |
| Co-author of "Hair" | 29 |
| Co-author of "Guys and Dolls" | 39 |
| Co-author of "Cruel Tricks for Dear Friends" | 54 |
| Co-author of "Beyond the Valley of the Dolls" | 55 |
| Co-author of The Umpire Strikes Back | 39 |
| Co-author of The Ugly American | 32 |
| Co-attendant on Cleo | 20 |