| Rabidin Satir | 2009 - 2012 | Malaysia | 2 |
| Rachel Marie Wade | 2009 | USA | 1 |
| Rachel Shoaf | 2012 | USA | 1 |
| Radcliffe Franklin Haugton | 2012 | USA | 3 |
| Radik Tagirovich Tagirov | 2011 - 2012 | Russia | 31 |
| Rae Theotis Carruth | 1999 | USA | 1 |
| Raghunandan Yandamuri | 2012 | India | 2 |
| Rakeem Florence | 2009 | USA | 2 |
| Ralph Baze | 1992 | USA | 2 |
| Ralph James Hudson | 1960 | USA | 1 |
| Ralph James Phillips | 2006 | USA | 1 |
| Ralph Leroy Menzies | 1986 | USA | 1 |
| Ram Singh | 2012 | India | 1 |
| Ramadan Abdel Rehim Mansour | 2004 - 2006 | Egypt | 32+ |
| Raman Raghav | 1965 - 1968 | India | 41 |
| Ramiro Felix Gonzales | 2001 | USA | 1 |
| Ramon Alberto Escobar | 2018 | USA | 7 |
| Ramón Bojórquez Salcido | 1989 | USA | 7 |
| Ramon Jay Rogers | 1993 - 1996 | USA | 3 |
| Ramon Torres Hernandez | 1994 - 2001 | USA | 3+ |
| Randall Greenawalt | 1974 - 1978 | USA | 7+ |
| Randall Woodfield | 1975 - 1981 | USA | 18+ |
| Randy Ethan Halprin | 2000 | USA | 1 |
| Randy Kraft | 1971 - 1983 | USA | 16+ |
| Randy William Gay | 1978 - 2011 | USA | 3 |
| Raul Meza Jr. | 1982 - 2023 | USA | 3 |
| Raúl Osiel Marroquín Reyes | 2005 | Mexico | 4 |
| Raúl Ricardo Sarinana | 2005 | USA | 2 |
| Ray Shawn Jackson | 1989 - 1990 | USA | 6 |
| Raya Ali Hammam | 1919 - 1920 | Egypt | 17 |
| Raymond Edmunds | 1966 | Australia | 2+ |
| Raymond Eugene Brown | 1960 - 1987 | USA | 5 |
| Raymond Eugene Johnson | 1995 - 2007 | USA | 3 |
| Raymond Henry Bousquet | 1935 | United Kingdom | 1 |
| Raymond John Bailey | 1957 | Australia | 3 |
| Raymond Martinez Fernandez | 1947 - 1949 | USA | 3+ |
| Raymond Twyford | 1992 | USA | 1 |
| Raymond W. Copeland | 1986 - 1989 | USA | 5+ |
| Raymond W. Ferritto | 1957 - 1992 | USA | 2 |
| Raymont Hopewell | 1999 - 2005 | USA | 5 |
| Raynella Dossett Leath | 1992 - 2003 | USA | 1+ |
| Réal Simard | 1980 - 1983 | Canada | 5 |
| Rebecca Smith | 1849 | United Kingdom | 8 |
| Reetika Gina Vazirani | 2003 | India | 1 |
| Regina DeFrancisco | 2000 | USA | 1 |
| Reginald Dexter Carr Jr. | 2000 | USA | 5 |
| Reginald McFadden | 1969 - 1994 | USA | 3+ |
| Reginald Perkins | 1980 - 2000 | USA | 3+ |
| Reginald R. Gross | 1985 - 1986 | USA | 3 |
| Reginald Vernon Oates | 1968 | USA | 4 |
| Regis Deon Thomas | 1992 - 1993 | USA | 3 |
| Reinaldo Javier Rivera | 1999 - 2000 | Spain | 4 |
| Rekha Kumari-Baker | 2007 | United Kingdom | 2 |
| Renaud Hardy | 2009 - 2015 | Belgium | 3 |
| Renuka Kiran Shinde | 1990 - 1996 | India | 5 |
| Reta Phyllis Mays | 2017 - 2018 | USA | 8+ |
| Reyhaneh Jabbari | 2007 | Iran | 1 |
| Rhoda Willis | 1907 | England | 1 |
| Rhonda Belle Martin | 1937 - 1951 | USA | 6 |
| Ricardo Alberto Barreda | 1992 | Argentina | 4 |
| Ricardo Silvio Caputo | 1971 - 1977 | Argentina / United States | 4 |
| Richard Albert Leavitt | 1984 | USA | 1 |
| Richard Alden Samuel McCroskey III | 2009 | USA | 4 |
| Richard Allen Davis | 1967 - 1996 | USA | 1+ |
| Richard Andrew Poplawski | 2009 | USA | 3 |
| Richard Angelo | 1987 | USA | 4+ |
| Richard Anthony Grissom Jr. | 1977 - 1989 | USA | 4 |
| Richard Benjamin Speck | 1966 | USA | 8 |
| Richard Bernard Moore | 1999 | USA | 1 |
| Richard Biegenwald | 1958 - 1983 | USA | 9+ |
| Richard Blass | 1968 - 1975 | Canada | 15 |
| Richard Charles Johnson | 1985 | USA | 2 |
| Richard Choque Flores | 2011 - 2021 | Bolivia | 3 |
| Richard Cottingham | 1967 - 1980 | USA | 18+ |
| Richard Crafts | 1986 | USA | 1 |
| Richard Durn | 2002 | France | 8 |
| Richard Edwin Fox | 1989 | USA | 1 |
| Richard Eugene Glossip | 1997 | USA | 1 |
| Richard Eugene Hamilton | 1994 | USA | 1 |
| Richard Eugene Hicock | 1959 | USA | 4 |
| Richard Gerald Jordan | 1976 | USA | 1 |
| Richard Gladwell McGown | 1986 - 1992 | Zimbabwe | 5+ |
| Richard Henyard | 1993 | USA | 2 |
| Richard Honeck | 1899 | USA | 1 |
| Richard Jabulani Nyauza | 2002 - 2006 | South Africa | 16 |
| Richard Kenneth Djerf | 1993 | USA | 4 |
| Richard Lawrence Marquette | 1961 - 1975 | USA | 3 |
| Richard Lee Tabler | 2004 | USA | 4 |
| Richard Leonard Kuklinski | 1949 - 1986 | USA | 5+ |
| Richard Marc Edward Evonitz | 1987 - 2002 | USA | 6+ |
| Richard Michael Cartwright | 1996 | USA | 1 |
| Richard Norman Rojem Jr. | 1984 | USA | 1 |
| Richard Pryde Boggs | 1988 | USA | 1 |
| Richard Ramirez | 1984 - 1985 | USA | 15+ |
| Richard S. Burgess | 1866 | United Kingdom | 5 |
| Richard Scott Baumhammers | 2000 | USA | 5 |
| Richard Steeves | 1965 - 1985 | USA | 6 |
| Richard Tobias Delage | 1960 - 1969 | USA | 2+ |
| Richard Trenton Chase | 1977 - 1978 | USA | 6 |
| Richard Wade Cooey II | 1986 | USA | 2 |
| Richard Wade Farley | 1988 | USA | 7 |
| Richard Westall Rogers Jr. | 1973 - 1993 | USA | 2+ |
| Ricky Abeyta | 1991 | USA | 7 |
| Ricky Lee Green | 1985 - 1986 | USA | 4+ |
| Ridouan Taghi | 1992 - 2019 | Netherlands / Morocco | 10 |
| Riley Dobi Noel | 1995 | USA | 3 |
| Rita Gluzman | 1996 | USA | 1 |
| Rita Gorgonowa | 1931 | Croatia / Serbia | 1 |
| Robbie James Lyons | 1993 | USA | 1 |
| Robert Alan Durst | 1982 - 2001 | USA | 3 |
| Robert Alan Fratta | 1994 | USA | 1 |
| Robert Alton Harris | 1978 | USA | 2 |
| Robert Andrew McGladdery | 1961 | United Kingdom | 1 |
| Robert Anthony Buell | 1981 - 1983 | USA | 2 |
| Robert Arthur Hawkins | 2007 | USA | 8 |
| Robert Austin Sullivan | 1973 | USA | 1 |
| Robert Bales | 2012 | USA | 16 |
| Robert Benjamin Rhoades | 1975 - 1990 | USA | 50+ |
| Robert Berdella | 1984 - 1988 | USA | 6 |
| Robert Black | 1981 - 1986 | United Kingdom | 4+ |
| Robert Bryant Melson | 1994 | USA | 3 |
| Robert Butler | 1863 - 1905 | Ireland | 1 |
| Robert Carl Hohenberger | 1978 | USA | 3+ |
| Robert Charles | 1900 | USA | 7 |
| Robert Charles Browne | 1987 - 1991 | USA | 2 |
| Robert Charles Gleason Jr. | 2007 - 2010 | USA | 3+ |
| Robert Charles Ladd | 1978 - 1996 | USA | 4 |
| Robert Clive Napper | 1992 - 1993 | United Kingdom | 3 |
| Robert Dale Conklin | 1981 - 1984 | USA | 1 |
| Robert Dale Henderson | 1982 | USA | 12 |
| Robert Donald William Farquharson | 2005 | Australia | 3 |
| Robert E. Lee Folkes | 1943 | USA | 1 |
| Robert E. Williams | 1997 | USA | 3 |
| Robert Earl O'Neal Jr. | 1979 - 1984 | USA | 2 |
| Robert Edward Chambliss | 1963 | USA | 4 |
| Robert Edward Maury | 1985 - 1987 | USA | 5+ |
| Robert Emmet Chambers Jr. | 1986 | USA | 1 |
| Robert Eugene Brashers | 1990 - 1998 | USA | 3+ |
| Robert Francis Burns | 1880 - 1881 | Ireland | 1-8 |
| Robert Francis Garrow Sr. | 1961 - 1973 | USA | 4 |
| Robert Francis Mone | 1967 | Scotland | 1 |
| Robert Frederick Carr III | 1972 - 1976 | USA | 4 |
| Robert Gene Rembert Jr. | 1997 - 2015 | USA | 5+ |
| Robert George Clements | 1920 - 1947 | United Kingdom | 1+ |
| Robert George Irwin | 1937 | USA | 3 |
| Robert Glen Coe | 1979 | USA | 1 |
| Robert Glen Jones Jr. | 1996 | USA | 7 |
| Robert Gregory Bowers | 2018 | USA | 11 |
| Robert Hansen | 1971 - 1983 | USA | 17+ |
| Robert J. Van Hook | 1985 | USA | 1 |
| Robert James Acremant | 1995 | USA | 3 |
| Robert Jimmy White Jr. | 1980 - 2013 | USA | 4 |
| Robert Joe Wagner | 1992 - 1999 | Australia | 10 |
| Robert John Bardo | 1989 | USA | 1 |
| Robert John Maudsley | 1974 - 1978 | England | 4 |
| Robert Joseph Silveria Jr. | 1981 - 1996 | USA | 9+ |
| Robert Lawlor | 2003 - 2020 | Ireland | 5 |
| Robert Lee Walden Jr. | 1990 - 1991 | USA | 2+ |
| Robert Lee Willie | 1978 - 1980 | USA | 3+ |
| Robert Lee Yates | 1975 - 1998 | USA | 16+ |
| Robert Leroy Anderson | 1994 - 1996 | USA | 2 |
| Robert Leroy Biehler | 1956 - 1974 | USA | 4 |
| Robert Lesarian Howard | 2001 | Ireland | 1 |
| Robert Leslie Roberson III | 2002 | USA | 1 |
| Robert Lynn Pruett | 1995 - 1999 | USA | 2 |
| Robert Mark Edwards | 1986 - 1993 | USA | 2 |
| Robert Nixon | 1937 - 1938 | USA | 3 |
| Robert Raymond Cook | 1959 | Canada | 7 |
| Robert Rozier | 1981 - 1986 | USA | 4 |
| Robert Shulman | 1991 - 1995 | USA | 5+ |
| Robert Spangler | 1978 - 1993 | USA | 4+ |
| Robert Steinhäuser | 2002 | Germany | 16 |
| Robert Stewart Flores Jr. | 2002 | USA | 3 |
| Robert Sylvester Alston | 1991 - 1993 | USA | 4+ |
| Robert Tyrone Hayes | 2005 - 2016 | USA | 3 |
| Robert Wayne Danielson Jr. | 1970 - 1982 | USA | 7+ |
| Robert Wayne Harris | 1999 - 2000 | USA | 6 |
| Robert Wayne Williams | 1979 | USA | 1 |
| Robert Wesley Knighton | 1973 - 1990 | USA | 5 |
| Robert Willard Liberty | 1966 - 1970 | USA | 3 |
| Robert William Fisher | 2001 | USA | 3 |
| Robert William Latimer | 1993 | Canada | 1 |
| Robert William Pickton | 1978 - 2001 | Canada | 6+ |
| Robert Zarinsky | 1965 - 1974 | USA | 3+ |
| Roberto José Carmona | 1986 - 2022 | Argentina | 4 |
| Roberto Succo | 1981 - 1988 | Italy | 7 |
| Roberto V. Arguelles | 1992 | USA | 4+ |
| Roberto Wagner Fernandes | 2000 - 2001 | USA | 3+ |
| Robin Gecht | 1981 - 1982 | USA | 18 |
| Robin Lee Row | 1992 | USA | 3 |
| Rocky Ali Beamon | 2005 - 2017 | USA | 3 |
| Rocky Lee Barton | 2003 | USA | 1 |
| Rodney Alcala | 1968 - 1979 | USA | 9 |
| Rodney Rodell Reed | 1996 | USA | 1 |
| Rodney Scott Berget | 2011 | USA | 1 |
| Rodrick Shonte Dantzler | 2011 | USA | 7 |
| Roger Andermatt | 1995 - 2001 | Switzerland | 22 |
| Roger Dale Stafford | 1974 - 1978 | USA | 9+ |
| Roger Girerd | 1965 | France | 10 |
| Roger Keith Coleman | 1981 | USA | 1 |
| Roger Kingsley Dean | 2011 | Australia | 11 |
| Roger Nicholas Angleton | 1997 | USA | 1 |
| Roger Reece Kibbe | 1977 - 1987 | USA | 8+ |
| Roger Wallace Warren | 1992 | Canada | 9 |
| Roland E. Clark | 1954 - 1967 | USA | 2 |
| Roman Podkopaev | 2007 - 2013 | Russia | 30+ |
| Roman Vladimirovich Burtsev | 1993 - 1996 | | 6 |
| Romell Broom | 1984 | USA | 1 |
| Romeo Daley | 2020 | United Kingdom | 1 |
| Romina Anahí Tejerina | 2003 | Argentina | 1 |
| Romulus Vereș | 1972 - 1974 | Romania | 5 |
| Ronald Adrin Gray | 1986 - 1987 | USA | 4 |
| Ronald Alain Janssen | 2007 - 2010 | Belgium | 3+ |
| Ronald Allen Smith | 1982 | USA | 2 |
| Ronald Baquiran Bae | 2013 | Philippines | 8 |
| Ronald Clark O'Bryan | 1974 | USA | 1 |
| Ronald Dominique | 1997 - 2006 | USA | 23+ |
| Ronald Gene Simmons Sr. | 1987 | USA | 16 |
| Ronald Hinton | 1996 - 1999 | USA | 3 |
| Ronald Jebson | 1970 - 1974 | United Kingdom | 3 |
| Ronald Joseph DeFeo Jr. | 1974 | USA | 6 |
| Ronald Joseph Ryan | 1965 | Australia | 1 |
| Ronald Keith Allridge | 1976 - 1985 | USA | 4 |
| Ronald Lee Haskell Jr. | 2014 | USA | 6 |
| Ronald Ray Howard | 1992 | USA | 1 |
| Ronald Ray Phillips | 1993 | USA | 1 |
| Ronald Raymond Woomer | 1979 | USA | 4 |
| Ronald Turney Williams | 1975 - 1981 | USA | 3 |
| Ronald Turpin | 1949 - 1962 | Canada | 1 |
| Ronald Young | 1996 | USA | 1 |
| Ronnie Lee Gardner | 1984 - 1985 | USA | 2 |
| Ronny Rieken | 1996 - 1998 | Germany | 2 |
| Rory Enrique Conde | 1994 - 1995 | USA | 6 |
| Rosalie Schneider | 1890 - 1891 | Austria | 3+ |
| Rosario Porto Ortega | 2013 | Spain | 1 |
| Rosemary Pauline West | 1971 - 1987 | England | 10+ |
| Roxalana Druse | 1884 | USA | 1 |
| Roy Albert DeMeo | 1966 - 1983 | USA | 200 |
| Roy Allan Melanson | 1974 - 1988 | USA | 5+ |
| Roy Lewis Norris | 1979 | USA | 5+ |
| Roy William Whiting | 2000 | United Kingdom | 1 |
| Ruben Gutierrez | 1998 | USA | 1 |
| Ruben Montoya Cantu | 1984 | USA | 1 |
| Ruby McCollum | 1952 | USA | 1 |
| Rudolf Pleil | 1946 - 1947 | Germany | 25 |
| Rudy Bladel | 1963 - 1978 | USA | 7 |
| Rufus William Franklin | 1938 | USA | 1 |
| Ruslan Rakhimovich Khamarov | 2000 - 2003 | Soviet Union | 11 |
| Russell Ellwood | 1991 - 1996 | USA | 1+ |
| Russell Eugene Weston Jr. | 1998 | USA | 2 |
| Russell Maurice Johnson | 1973 - 1977 | Canada | 7 |
| Rustam Musadinovich Kiknadze | 2004 - 2020 | Kazakhstan | 5 |
| Ruth Blay | 1768 | USA | 1 (Unborn child) |
| Ruth Ellis | 1953 - 1955 | United Kingdom | 1 |
| Ryan James Hoyt | 2000 | USA | 1 |
