| Jace, Alex | 37 Books | 1 Series |
| Jacks, Cindy | 16 Books | 1 Series |
| Jacks, Marcy | 317 Books | 47 Series |
| Jackson, Katrina | 30 Books | 1 Series |
| Jackson, Vina | 12 Books | 2 Series |
| Jaden, Aeryn | 7 Books | 1 Series |
| Jakes, S.E. | 21 Books | 4 Series |
| Jakubowski, Maxim | 100 Books | 1 Series |
| James, Christina | 35 Books | 1 Series |
| James, Clare | 23 Books | 5 Series |
| James, Ellison | 12 Books | 1 Series |
| James, Gemma | 31 Books | 5 Series |
| James, Hayley B. | 7 Books | 1 Series |
| James, Honor | 45 Books | 9 Series |
| James, Jade | 25 Books | 2 Series |
| James, Karolyn | 32 Books | 8 Series |
| James, Raina | 9 Books | 2 Series |
| James, Sherry | 6 Books | 1 Series |
| Jameson, Elianne | 6 Books | 1 Series |
| Jameson, Eve | 7 Books | 1 Series |
| Jameson, Jenna; Tarr, Hope | 3 Books | 1 Series |
| Jameson, Jessalyn | 17 Books | 3 Series |
| Jamison, Alice | 56 Books | 9 Series |
| Jamison, Jade C. | 92 Books | 5 Series |
| Jamison, Jane | 118 Books | 19 Series |
| Jane, Addison | 13 Books | 3 Series |
| Janes, Matilda | 11 Books | 5 Series |
| Janssen, Victoria | 15 Books | 1 Series |
| Jaques, Zequeatta | 4 Books | 1 Series |
| Jarman, Jessica | 29 Books | 5 Series |
| Jarrett, A.J. | 68 Books | 4 Series |
| Jarvie, Judy | 8 Books | 1 Series |
| Jasen, Jessie | 18 Books | 4 Series |
| Jay, Emma | 29 Books | 2 Series |
| Jay, Lissa | 3 Books | 1 Series |
| Jayne, Calista | 39 Books | 3 Series |
| Jayne, Raven | 11 Books | 1 Series |
| Jean, Billi | 22 Books | 2 Series |
| Jermy, Marie | 7 Books | 2 Series |
| Jewell, Elizabeth | 44 Books | 2 Series |
| Joachim, Jean C.; Tanner, Ben | 2 Books | 1 Series |
| Johnson, Karen S. | 1 Book | 1 Series |
| Joicey-Cowen, Violet | 13 Books | 3 Series |
| Jolie, Francesca | 10 Books | 1 Series |
| Jones, J.Q. | 6 Books | 1 Series |
| Jones, Jambrea Jo | 57 Books | 4 Series |
| Jones, Lara | 35 Books | 4 Series |
| Jools, Louise | 1 Book | 1 Series |
| Jordan, Eve | 16 Books | 2 Series |
| Jordan, Olivia | 6 Books | 1 Series |
| Jordan, Sable | 12 Books | 1 Series |
| Jordan, Savannah | 4 Books | 1 Series |
| Joyce, Rebecca | 42 Books | 4 Series |
| Juarez, Bella | 9 Books | 1 Series |
| Judson, Gemini | 9 Books | 1 Series |
| St. John, Tracy | 64 Books | 8 Series |