"G" Bobs
- Bobby Gage - Golf
- Robert Galbraith - Author
- Robert Gale - Screenwriter
- Bob Gale - Cricket
- Robert Gallager - Engineer
- Robert Gallagher - Photographer
- Bob Gallagher - Baseball
- Bob Gallagher - Sportscaster
- Robert Gallery - Football
- Robert Glasper - Piano
- Robert Gant - Actor
- Robert Garcia - Long Beach, CA Mayor
- Roberto Garcia - Boxer
- Roberto Garcia - Boxer
- Roberto Garza - Football
- Robert Gates - US Secretary of Defense
- Bob Gaudio - Singer / Songwriter
- Roberto Escobar Gaviria - Drug Kingpin
- Bob Geldof - Singer / Songwriter
- Robert Genn - Artist
- Bobbie Gentry - Singer / Songwriter
- Robert P. George - Legal Scholar
- Robert Gesnick - Bicycle Racer
- Robert Gibbings - Artist
- Robert Gibbons - Author
- Robert Gibbons - Economist
- Robert Gibbons - Canadian Politician
- Bob Gibbons - Basketball
- Robert Gibbs - White House Press Secretary
- Bob Gibson - Folk Singer
- Bob Gibson - Baseball
- Bob Gill - Illustrator
- Bob Gill - Stunt Driver
- Bobby Gillespie - Singer
- Bob Gimlin - Director
- Robert Glauber - Sportswriter
- Robert Glazer - Author
- Bob Glidden - Motor Sports
- Bob Goalby - Golf
- Robert Gober - Artist
- Robert Goddard - Rocket Scientist
- Bob Goen - Television Host
- Roberto Goizueta - Business
- Bobby Goldsboro - Singer / Songwriter
- Robert Goldstein - NPR Music Librarian
- Bobcat Goldwaith - Comedian
- Bob Golic - Football
- Roberta Michnick Golinkoff - Author
- Roberto Gomez - Actor
- Robert Gomez - Rock
- Bob Goodlatte - US House
- Robert Goodloe - Opera Singer
- Robert Goon - Actor
- Robert Gordon - Actor
- Bob Gordon - Saxophone
- Robert Gordon - Singer
- Robert Gordon - Director
- Robert Gordon - Filmmaker
- Robert Gordon - Screenwriter
- Robert Gordon - British Military
- Robert Gordon - Psychologist
- Robert Gordon - Minister
- Robert Gordon - Cricket
- Robert Gordon - Football
- Robby Gordon - Motor Sports
- Robert Gordon - Rower
- Bob Gordon - Rugby
- Robert Gordon - Soccer
- Sir Robert Gordon - British Diplomat
- Sir Robert Gordon, 1st Baronet - Scottish Politician
- Sir Robert Gordon, 3rd Baronet - Scottish Politician
- Robert A. Gordon - Sociologist
- Robert Aaron Gordon - Economist
- Robert B. Gordon - US House
- Robert Gordon - British Army Officer
- Robert Jacob Gordon - Dutch Explorer
- Robert James Gordon - Economist
- Robert MacIntyre Gordon - World War I Flying Ace
- Robert M. Gordon - New Jersey Senate
- Robert P. Gordon - Professor
- Robert Gordon - Scottish Cartographer
- Robert Winslow Gordon - Folklorist
- Robert Gore - Business
- Robert Gottschall - Actor
- Robert Goulet - Singer
- Robert Graham - Artist
- Bob Graham - Author
- Robert Graham - Singer
- Robert Graham - Scottish Military
- Robert Graham - US Navy
- Robert Graham - Botanist
- Robert Graham - Historian
- Robert Graham - King James I of Scotland Assassin
- Robert Graham - Physicist
- Bob Graham - US Senate
- Bob Graham - Australian Politician
- Robert Graham - English Judge
- Robert Graham - New Zealand Politician
- Robert Graham - Scottish Politician
- Robert Graham - Wisconsin Politician
- Robert Graham - Cricket
- Bob Graham - Hockey
- Bob Graham - Fell Runner
- Robert A. Graham - Jesuit Priest
- Robert Bontine Cummingham Graham - Scottish Politician
- Robert Cummingham Graham - Scottish Politician
- Robert Klark Graham - Business
- Robert M. Graham - Computer Scientist
- Robert M. Graham - Wisconsin Politician
- Robert James Graham - Australian Politician
- Robert S. Graham - Business
- Robert S. Granger - US General
- Robert Grant - Author
- Robert Graves - Author
- Robert Green - Rapper
- Rob Green - Director
- Bob Green - Naturalist
- Bob Green - Australian Rules Football
- Robert Green - Cricket
- Robbie Green - Darts
- Robert Green - Tennis
- Robert Green - Soccer
- Robert A. Green - US House
- Robert C. Green - Physician
- Robert David Green - Football
- Robert Francis Green - Business
- Bobby Joe Green - Football
- Robert L. Green - Playboy Magazine Fashion Director
- Bobby Ray Green - Mixed Martial Arts
- Robert Stockton Green - New Jersey Governor
- Robert Greenblatt - Chairman NBC Entertainment
- Robert Greenblatt - Activist
- Robert Benjamin Greenblatt - Physician
- Robert Greene - Author
- Bob Greene - Jazz Piano
- Robert Greene - Filmmaker
- Robert Greene - Playwright
- Bob Greene - Exercise Physiologist
- Bob Greene - Journalist
- Robert Greene - Philosopher
- Robert Everist Greene - Mathematician
- Robert Joseph Greene - Author
- Robert L. Greene - Psychologist
- Robert Lane Greene - Journalist
- Robert W. Greene - Journalist
- Robert Greenhut - Movie Producer
- Greyfriars Bobby - Skye Terrier statue in Edinburgh, Scotland
- Bobby Grich - Baseball
- Bob Griese - Football
- Robert Griffin III - Football
- Bob Griffiths - Author
- Robert Griffiths - Physicist
- Robert Griffiths - General Secretary of the Communist Party of Britain
- Robert William Griffiths - Business
- Rob Grill - Singer
- Rob de Groot - Stuntman
- Bob Gross - Basketball
- Robert A. Gross - Composer
- Robert A. Gross - Historian
- Robert A. Gross - Physicist
- Robert E. Gross - Business
- Robert E. Gross - Surgeon
- Robert Grossman - Artist
- Robert Grossman - Computer Scientist
- Robert Grove - English Bishop
- Robert Lefty Grove - Baseball
- Robert Groves - Artist
- Robert Groves - Sociologist
- Robert M. Groves - British Navy Officer
- Robert H. Grubbs - Nobel Laureate in Chemistry
- Bobby Gubby - Singer
- Bob Guccione - Publisher
- Robert Guillaume - Actor
- Robert Gunnell - Broadcaster
- Bobby Gunning - British Military
- Bob Gunton - Actor