| Jackson | Benjamin | Ashley | E | Holborn Lenhoff Massey | 02/08/2006 | |
| Jackson | Brian | Raphael | E | DLA Phillips Fox | 03/02/1998 | |
| Jackson | Darren | John | B | Darren Jackson | 23/12/1992 | |
| Jackson | Julie | Michele | E | Legal Aid of Western Australia | 23/12/1983 | |
| Jackson | Phillip | Sidney Redmond | S | Jackson, PSR | 16/02/1981 | |
| Jackson | Scott | Michael | NP | Not Practising | 02/06/2006 | |
| Jacob | Simon | Christopher | E | Young & Young | 02/02/1995 | |
| Jacobs | Daniel | Paul | E | Yamatji Marlpa Aboriginal Corporation | 02/02/2010 | |
| Jacobs | Roger | Anthony | SG | Parliamentary Counsel's Office | 02/04/2003 | |
| Jacobson | Gregory | Daniel | E | Westralia Airports Corporation | 04/02/2003 | |
| Jacobson | Jonathan | | A | Office of the Australian Government Solicitor | 22/12/1998 | |
| Jagger | Kenneth | Robert | DI | Balance Legal | 14/07/1993 | |
| Jakovich | Vanessa | Maree | E | Freshfields Bruckhaus Deringer LLP | 16/07/2003 | |
| James | Andrew | Charles Lennox | E | Clayton Utz | 05/03/2009 | |
| James | Craig | Harry | EP | Gibson & Gibson | 23/12/1975 | |
| James | Gavin | William | E | Aboriginal Legal Service of Western Australia (Inc) | | |
| James | Halga | Anna | E | Kott Gunning | 02/02/1999 | |
| James | Jennifer | Teresa | SP | O'Sullivan Davies | 04/02/1986 | |
| James | Laurie | Edmond | EP | Kott Gunning | 24/12/1965 | |
| James | Timothy | Rhys | E | McDonald Pynt Lawyers | 04/02/1986 | |
| Jamieson | Gale | Louise | SG | Parliamentary Counsel's Office | 02/02/2006 | |
| Jamieson | William | John Drayton | S | Jamiesons Lawyers | 23/12/1980 | |
| Jan | Martin | Tshin Fong | A | Federal Court of Australia | 21/12/1973 | |
| Jan | Matthew | Kuan-Yew | E | DLA Phillips Fox | 02/04/2008 | |
| Jansen | Cheyne | Lucas | E | Blake Dawson | 08/04/2010 | |
| Jansen | Yvonne | Lynnette | E | Blake Dawson | 02/03/2006 | |
| Jardine | Timothy | Scott | E | Altorfer and Stow | 02/04/2009 | |
| Jarman | Piet | Ellis | EP | Jarman McKenna | 23/12/1980 | |
| Jarosek | Peter | Sandor | EP | Corrs Chambers Westgarth | 23/12/1983 | |
| Jarvis | Clancy | Melissa | I | St John of God Health Care Inc | 02/02/1994 | |
| Jarvis | Lisa | Ruth | E | O'Sullivan Davies | 04/04/2000 | |
| Jarvis | Marcia | Jane | SG | Public Trustee | 19/12/1997 | |
| Jasper | Melanie | Bree | E | Allens Arthur Robinson | 02/02/2007 | |
| Jasper | Thomas | James | E | Clayton Utz | 04/03/2010 | |
| Jaycock | Karen | Marie | E | Jackson McDonald | 04/09/2006 | |
| Jebb | Patrick | Gerard Gladwyn | S | Jebb Legal | 20/12/1991 | |
| Jeffrey | Anita | Maree | I | Bank of Western Australia Ltd | 01/02/2008 | |
| Jenaway | David | Ashley | E | Freehills | 05/03/2009 | |
| Jenkin | Michael | Andrew Gliddon | SG | Office of the State Solicitor | 22/12/1995 | |
| Jenkins | Simon | Vincent | DI | Price Sierakowski | 02/03/1994 | |
| Jenkins | Zoe | Margaret Mary | SG | Office of the Director of Public Prosecutions (State) | 22/12/1995 | |
| Jennings | Kim | Ann | SG | Office of the Director of Public Prosecutions (State) | 04/03/2010 | |
| Jensen | Alison | | I | Eni Australia Limited | 02/02/2007 | |
| Jensen | Michael | Egon Sadolin Holst | E | Lavan Legal | 21/12/2000 | |
| Jensen | Tonya | Lee | E | Legal Aid of Western Australia | 03/05/2005 | |
| Jessy | Narinder | Singh | DI | CS Legal | 02/02/2000 | |
| Jewell | Eleanor | | E | Norton Rose Australia | 05/03/2003 | |
| Jewkes | David | Wallace | E | Norton Rose Australia | 02/03/2007 | |
| Jewkes | Holly | Louise | E | Minter Ellison | 18/12/2009 | |
| Jeyamohan | Tania | | E | Jackson McDonald | 04/04/2000 | |
| John | David | William | EP | Freehills | 02/03/1990 | |
| John | Nicholas | Thomas Loraine | SG | Office of the State Solicitor | 04/03/2010 | |
| Johns | Catherine | Rachel | I | Regis Resources | 20/12/1991 | |
| Johnson OAM | Peter | Gerald | S | Johnson, PG | 23/12/1977 | |
| Johnson | Anna | Erica | SG | Office of the State Solicitor | 04/03/2010 | |
| Johnson | Daniel | Slade | SG | Office of the Director of Public Prosecutions (State) | 02/08/2007 | |
| Johnson | Fiona | Elizabeth | E | Butcher Paull & Calder | 19/12/1997 | |
| Johnson | Jane | Burns | E | Kim Wilson & Co | 19/02/2008 | |
| Johnson | Jennifer | Lee | NP | Not Practising | 20/12/2002 | |
| Johnson | Julian | Richard | S | Julian Johnson Lawyers | 02/02/1989 | |
| Johnson | Matthew | Robert James | FP | Clayton Utz | 22/12/2004 | |
| Johnson | Richard | Charles | E | Irdi Legal | 20/11/1973 | |
| Johnson | Richard | Michael | E | Minter Ellison | 05/02/2004 | |
| Johnson | Robert | Scott | E | Northern Suburbs Community Legal Centre Inc | 02/03/2000 | |
| Johnson | William | Rupert | S | Johnson, WR | 02/02/1996 | |
| Johnston | Barry | Richard | S | Barry R Johnston | 18/03/1969 | |
| Johnston | Claudia | Louise Baverstock | E | DibbsBarker | 04/03/2010 | |
| Johnston | David | Albert Lloyd | S | D.A.L Johnston | 04/03/1981 | |
| Johnston | George | Turner | E | Corrs Chambers Westgarth | 02/10/1998 | |
| Johnston | Jeremy | Yeoman | SG | Office of the State Coroner | 04/03/1998 | |
| Johnston | Jordan | Alan | E | Butcher Paull & Calder | 04/02/2008 | |
| Johnston | Julia | | EP | Calverley Johnston | 23/12/1980 | |
| Johnston | Peter | Walter | B | Johnston, PW | 24/12/1965 | |
| Johnston | Raelene | Natasha | SG | Office of the Director of Public Prosecutions (State) | 05/03/1997 | |
| Jones | Alexander | Guy | E | DLA Phillips Fox | 02/02/2001 | |
| Jones | Angus | William Morrison | EP | Allens Arthur Robinson | 23/12/1988 | |
| Jones | Darren | Paul | S | Darren Jones Barrister and Solicitor | 04/10/2006 | |
| Jones | David | Lancelot | B | Jones, DL | 04/02/1985 | |
| Jones | David | Charles | SG | Office of the State Solicitor | 04/03/2010 | |
| Jones | Edwina | Jennifer | E | Blake Dawson | 02/09/2003 | |
| Jones | Emma | Jane | E | Blake Dawson | 08/04/2010 | |
| Jones | Ian | Steve | SG | Office of the Director of Public Prosecutions (State) | 02/02/1989 | |
| Jones | Julie | Melissa | I | Iluka Resources Limited | 22/12/2004 | |
| Jones | Justin | Duncan | E | Blake Dawson | 05/02/2004 | |
| Jones | Karen | Anne | SG | Western Australian Police Service | 14/07/1999 | |
| Jones | Michael | Rowland | B | Michael Jones | 02/08/1984 | |
| Jones | Natasha | Anne | E | Downings Legal | 02/03/2007 | |
| Jones | Richard | Peregrine Hugh | I | Newmont Asia Pacific | 02/03/2001 | |
| Jones | Steven | James | B | Jones, SJ | 23/12/1983 | |
| Jones | Tegan | Lorna Reedman | E | Freehills | 05/03/2008 | |
| Jones | Timothy | Francis Jenkyn | I | Intium Energy Ltd | 04/02/1997 | |
| Jones | Toby | | SG | East Perth Redevelopment Authority | 05/02/2004 | |
| Jooste | Hamish | Peter Innes | E | Herbert Smith LLP | 22/12/1999 | |
| Jooste | Peter | Innes | B | Jooste, PI, QC | 04/05/1987 | QC |
| Jordan | Vivienne | Rose | SG | Office of the State Solicitor | 05/03/1997 | |
| Jorissen | Juliana | Nicole | E | Mallesons Stephen Jaques | 03/02/1998 | |
| Joseph | Nicole | Louise | E | Sussex Street Community Law Service Inc | 02/05/2007 | |
| Joseph | Rachel | Reena | E | Allens Arthur Robinson | 08/04/2010 | |
| Josland | Stephen | John | S | Stephen Josland Barrister & Solicitor | 03/02/1987 | |
| Joubert | Fran | Michelle | I | Rio Tinto Ltd | 24/07/2008 | |
| Joubert | Michael | John | S | Michael J. Joubert | 11/02/2008 | |
| Joyce | Melissa | Kym | E | DLA Phillips Fox | 02/02/2000 | |
| Joyner | Anthony | Colin | EP | Freehills | 19/12/1986 | |
| Judd | Michael | Henry | S | Judd, MH | 02/02/1999 | |
| Jumeaux | Veronica | Kay | DI | Downings Legal | 05/03/1991 | |
| Jurek | Marisha | | E | Butcher Paull & Calder | 03/08/2004 | |