| Paccard | Paccolat | Pache | Pachoud |
| Paci | Pacozzi | Paërnat (de) | Pagliotti |
| Pala | Parnmer | Panatier | Pannatier |
| Paoli (de) | Pasche | Pasquinoli | Passaquay |
| Passeraub | Passerěni | Passin | Passy |
| Patrici | Pattaroni | Pecorini | Pédronin |
| Pellanda | Pellaud | Pellegrini | Pellet |
| Pellissier | Pellouchoud | Peney | Penon |
| Peray | Perelli | Pernet | Pernolet |
| Pernollet | Perraudin | Perren | Perrier |
| Perrig | Perrin | Perrin | Perrini |
| Perrollaz | Perroud | Perruchoud | Persod |
| Peter | Petoud | Petri | Petricioli |
| Petrig | Petrus | Petten | Peyla |
| PfafFen | Pfamatter | Pfánder | Pfefferle |
| Pfeifer | Pfyffer | Philip | Philippoz |
| Piamont (de) | Pianzola | Piasenta | Piatti |
| Piccolimi | Pichel | Picon | Pďct |
| Pidroni | Pierig | Pierraz | Pierroz |
| Pěgnat | Pitlet | Pinet | Piota |
| Piotaz | Piron | Piscia | Pistoletti |
| Pitteloud | Pittier | Pizy (de) | Planchamp |
| Plaschy | Plassy | Plast | Plastro (de) |
| Platea (de) | Platter | Pochon | Poldo (de) |
| Poletti | Polling | Pollinger | Pommaz |
| Pont | Ponta | Pont-Saint-Martin (de) | Ponzin |
| Portier | Portmann | Possa | Posse |
| Pot | Pott | Pottier | Pouget |
| Poypon (de) | Pradegan | Pralong | Praplan |
| Pratis (de) | Prato (de) | Praxmayer | Praxmeyer |
| Praz | Premand | Preux (de) | Prez-Tavelli |
| Primmaz | Prinsičres (de) | Prěod | Produit |
| Provence | Providoli | Proz |