| Gabriel Arturo Garza Hoth | 1991 - 1998 | Mexico | 3 |
| Gabriel Wortman | 2020 | Canada | 22 |
| Galareka Harrison | 2007 | USA | 1 |
| Gamil Rodrigue Liass Gharbi | 1989 | Canada | 14 |
| Gao Chengyong | 1988 - 2002 | China | 11 |
| Gao Haiping | 1981 | China | 31 |
| Garcia Glen White | 1989 - 1995 | USA | 3 |
| Gary Allen Srery | 1961 | Canada | 4+ |
| Gary Duane Rardon | 1962 - 1974 | USA | 4 |
| Gary Evans | 1985 - 1997 | USA | 5 |
| Gary Gene Grant | 1969 - 1971 | USA | 4 |
| Gary James Lewingdon | 1977 - 1978 | USA | 10 |
| Gary Lee Davis | 1986 | USA | 1 |
| Gary Lee Graham | 1981 | USA | 1 |
| Gary M. Heidnik | 1986 - 1987 | USA | 2+ |
| Gary Mark Gilmore | 1976 | USA | 1 |
| Gary Michael Hilton | 2007 - 2008 | USA | 4+ |
| Gary Randall Muehlberg | 1990 - 1993 | USA | 5+ |
| Gary Ray Bowles | 1994 | USA | 6+ |
| Gary Ridgway | 1982 - 1998 | USA | 49+ |
| Gary Wayne Otte | 1992 | USA | 2 |
| Gaston Dominici | 1952 | France | 3 |
| Gayno Gilbert Smith | 1961 - 1962 | USA | 6 |
| Gen Sekine | 1993 | Japan | 4+ |
| Genaro Ruiz Camacho Jr. | 1988 | USA | 4 |
| Genene Jones | 1970 - 1982 | American | 2+ |
| Généreux Ruest | 1949 | Canada | 23 |
| Geneviève Lhermitte | 2007 | Belgium | 5 |
| Genildo Ferreira de França | 1997 | Brazil | 15 |
| Gennady Modestovich Mikhasevich | 1971 - 1985 | Soviet Union | 36+ |
| Genzo Kurita | 1948 - 1952 | Japan | 8 |
| Geordie Bourne | 1590 - 1597 | United Kingdom | 7 |
| George Brinkman Jr. | 2017 | USA | 5 |
| George Chapman | 1897 - 1902 | England | 3 |
| George David Silva | 1911 | Australia | 6 |
| George Elder Dungee | 1973 | USA | 7 |
| George Emil Banks | 1982 | USA | 13 |
| George Hassell | 1917 - 1926 | USA | 13 |
| George Henry Lamson | 1881 | USA | 1 |
| George Henry Nassar | 1948 - 1964 | USA | 2 |
| George James Trepal | 1988 | USA | 1 |
| George Joseph Cvek | 1940 - 1941 | USA | 1 |
| George Joseph Smith | 1912 - 1914 | United Kingdom | 3 |
| George Kearon Joseph Fitzsimmons | 1969 - 1973 | USA | 4 |
| George Martin Zinkhan III | 2009 | USA | 3 |
| George Pierre Hennard | 1991 | USA | 23 |
| George Reed Logue | 1941 | | 1 |
| George Ronald York | 1961 | USA | 7 |
| George W. Skatzes | 1979 - 1993 | USA | 4 |
| George Wesley Huguely V | 2010 | USA | 1 |
| George William Gee | 1904 | Canada | 1 |
| Gerald Armond Gallego | 1978 - 1980 | USA | 11+ |
| Gerald Eugene Stano | 1969 - 1980 | USA | 23+ |
| Gerald Fiten Mason | 1957 | Colombia | 2 |
| Gérald Gallant | 1978 - 2003 | Canada | 28 |
| Gerald James Bordelon | 2002 | USA | 1 |
| Gerald Ross Pizzuto Jr. | 1985 | USA | 4 |
| Gerald Walter McFadden | 1973 - 1986 | USA | 4 |
| Gerard John Schaefer | 1972 | USA | 2+ |
| Gerardo Flores | 2004 | USA | 2 |
| Gerhard Arthur Puff | 1952 | USA | 1 |
| Gertrude Baniszewski | 1965 | USA | 1 |
| Gertrude Nadine Baniszewski | 1965 | USA | 1 |
| Gesina Margarethe Gottfried | 1813 - 1827 | Germany | 15 |
| Geza de Kaplany | 1962 | Hungary | 1 |
| Geza F. P. de Kaplany | 1962 | Hungary | 1 |
| Gholamreza Khoshroo Kuran Kurdieh | 1997 | Iran | 9 |
| Gian Luigi Ferri | 1993 | USA | 8 |
| Giancarlo Giudice | 1983 - 1986 | Italy | 9 |
| Gianluca Casseri | 2011 | Italy | 2 |
| Giannis Retzos | 1917 - 1926 | Greece | 8-26+ |
| Gig Young | 1978 | USA | 1 |
| Gilbert Paul Jordan | 1965 - 2004 | Canada | 8 |
| Gilbert Ray Postelle | 2005 | USA | 4 |
| Gilberto Antonio Chamba Jaramillo | 1988 - 2004 | Ecuador | 9 |
| Gilles de Rais | 1432 - 1440 | France | 140+ |
| Gilles Garnier | 1572 - 1573 | France | 4+ |
| Gina Grant | 1990 | USA | 1 |
| Gioanni-Luigi Richetto | 1893 - 1899 | Italy | 4 |
| Giorgio Orsolano | 1834 - 1835 | Italy | 3 |
| Giovanni Brusca | 1980 - 1996 | Italy | 100+ |
| Giovanni Scalise | 1920 - 1929 | USA | 1+ |
| Girvies L. Davis | 1978 - 1979 | USA | 4+ |
| Giselle Diwag Esteban | 2011 | USA | 1 |
| Giuseppe Greco | 1970 - 1985 | Italy | 58 |
| Giuseppe Lucchese | 1970 - 1990 | Italy | 50 |
| Giuseppe Marco Fieschi | 1831 - 1835 | France | 18 |
| Giuseppe Zangara | 1933 | USA | 1 |
| Glen Burton Ake | 1979 | USA | 2 |
| Glen Edward Rogers | 1993 - 1995 | USA | 5+ (70 claimed) |
| Glen Sabre Valance | 1964 | Australia | 1 |
| Glen Stewart Godwin | 1980 - 1991 | USA | 1 |
| Glen Taylor Helzer | 2000 | USA | 5 |
| Glenn Lee Benner II | 1985 - 1986 | USA | 2 |
| Glennon Edward Engleman | 1958 - 1980 | USA | 7+ |
| Goidsargi Estibaliz Carranza Zabala | 2008 - 2010 | Austria | 2 |
| Gong Runbo | 2005 - 2006 | China | 6+ |
| Gordon Frederick Cummins | 1941 - 1942 | United Kingdom | 4+ |
| Gordon Stewart Northcott | 1926 - 1928 | USA | 3+ |
| Gordon Wardell | 1994 | United Kingdom | 1 |
| Gordon Wendell Kahl | 1983 | USA | 3 |
| Gourgen Mkrtich Yanikian | 1973 | USA | 2 |
| Grace Hubbard Fortescue | 1932 | USA | 1 |
| Grace Marks | 1843 | Canada | 1 |
| Graciano Bilas | 1931 | Philippines | 2 |
| Graham Coutts | 2003 | United Kingdom | 1 |
| Graham Frederick Young | 1961 - 1971 | United Kingdom | 3 |
| Graham Heaps | 2008 | United Kingdom | 1 |
| Gregorio Cárdenas Hernández | 1942 | Mexico | 4 |
| Gregorio Cortez Lira | 1901 | USA | 1 |
| Gregory Allan Despres | 2005 | Canada | 2 |
| Gregory Davis | 2003 | United Kingdom | 2 |
| Gregory John Brazel | 1982 - 1990 | Australia | 3 |
| Gregory Matthew Miley | 1980 | USA | 2 |
| Gregory McKnight | 1992 - 2000 | USA | 3 |
| Gregory Scarpa Sr. | 1950 - 1990 | USA | 3 |
| Grete Beier | 1907 | Germany | 1 |
| Gu Kailai | 2012 | China | 1 |
| Guadalupe Martínez de Bejarano | 1877 - 1892 | Mexico | 3 |
| Guen Garlejo Aguilar | 2005 | Philippines | 1 |
| Guenther Fritz Erwin Podola | 1959 | Germany | 1 |
| Guilherme Taucci Monteiro | 2019 | Brazil | 8 |
| Gunner Jay Lindberg | 1996 | USA | 2 |
| Günter Hermann Ewen | 1999 | Germany | 6 |
| Guo Zhongmin | 2003 | China | 13 |
| Gustav Carl Friedrich Müller | 1890 - 1897 | Germany | 2-18+ |
| Gustavo Romero Tercero | 1993 - 1998 | Spain | 3 |
| Gusztáv Léderer | 1919 - 1925 | Hungary | 9+ |
| Guy Georges | 1991 - 1997 | France | 7 |
| Guy Heinze Jr. | 2009 | USA | 8 |
| Gwendolyn Gail Graham | 1987 | USA | 5 |
| Gwynne Owen Evans | 1964 | United Kingdom | 1 |
