| Pace, Pepper | 51 Books | 1 Series |
| Paige, Elisa | 4 Books | 2 Series |
| Palomino, Honey | 26 Books | 2 Series |
| Paper, Betty | 6 Books | 1 Series |
| Parker, Kylie | 58 Books | 5 Series |
| Parker, Liberty; Tallman, Darlene | 21 Books | 4 Series |
| Parker, Lucy | 13 Books | 2 Series |
| Parkes, Elodie | 29 Books | 1 Series |
| Pascal, Plum | 12 Books | 3 Series |
| Paz, Sofia | 10 Books | 2 Series |
| Peace, Catherine | 9 Books | 1 Series |
| Pearl, Jane | 8 Books | 2 Series |
| Pearl, L.N. | 73 Books | 14 Series |
| Pelton, Kristi | 10 Books | 1 Series |
| Penn, Jenny | 30 Books | 7 Series |
| Penn, Jo | 36 Books | 2 Series |
| Perdita, Zoe | 59 Books | 12 Series |
| Perera, Marian | 9 Books | 2 Series |
| Peridot, J.L. | 9 Books | 1 Series |
| Perkins, Talina | 17 Books | 1 Series |
| Perky, Jane | 77 Books | 17 Series |
| Perry, Rachel | 19 Books | 4 Series |
| Persaud, Diana | 23 Books | 2 Series |
| Peters, Eliana S. | 3 Books | 1 Series |
| Peterson, S.J.D. | 39 Books | 1 Series |
| Phal, Francette | 5 Books | 1 Series |
| Philips, Daisy | 19 Books | 4 Series |
| Phillips, Christina | 33 Books | 3 Series |
| Phillips, Leigha | 1 Book | 1 Series |
| Philmar, Anita | 24 Books | 1 Series |
| Phoenix, Red | 92 Books | 11 Series |
| Piemonte, Rosemarie | 3 Books | 1 Series |
| Pierce, Cassandra | 38 Books | 5 Series |
| Pierce, E.R. | 16 Books | 5 Series |
| Pierce, M. | 3 Books | 1 Series |
| Pierce, Nina | 20 Books | 3 Series |
| Pike, Erica | 9 Books | 1 Series |
| Pine, Riley | 4 Books | 1 Series |
| Pine, Tori | 4 Books | 1 Series |
| Pita, Maria Isabel | 35 Books | 3 Series |
| Plakcy, Neil | 124 Books | 7 Series |
| Poff, Christy | 62 Books | 1 Series |
| Porter, Katie | 16 Books | 3 Series |
| Powell, Lindsey | 18 Books | 2 Series |
| Prater, Celeste | 17 Books | 2 Series |
| Prescott, Florence | 21 Books | 2 Series |
| Presley, Peter | 4 Books | 1 Series |
| Price, Aneesa | 6 Books | 1 Series |
| Price, Beverly | 5 Books | 1 Series |
| Prince, Nikki | 21 Books | 5 Series |
| Prior, Kate | 5 Books | 1 Series |