There are 138 unique surnames beginning with P:

Pacha	Pack	Page	Painter	Palen	Palmer	Palmerston
Paris	Parish	Park	Parke	Parker	Parks	Parmenter
Parmer	Parr	Parrish	Parrott	Parson	Parsons	Parthemer
Parthemor	Parthemore	Parthenia	Partridge	Paston	Patch	Patrick
Patrie	Patterson	Patton	Paugh	Paul	Paver	Paxson
Payne	Peach	Peackcock	Peacock	Pearse	Pearson	Pedrazzoli
Peet	Pence	Pendergast	Penhorwood	Penn	Penney	Pennington
Penny	Pennybaker	Pennypacker	Penrose	Penry	Peoples Bank of Marysville	Pepper
Peppers	Perfect	Perkins	Perring	Perry	Person_Appointee_Testator_Ward_Last_Name	Peters
Petrides	Pettet	Pettey	Pettit	Pfarr	Pfeiffer	Phelps
Philbrook	Phillips	Philo	Philpott	Phinney	Phipps	Physician Certificates Report
Pickett	Pidgeon	Pierce	Piersel	Piersol	Pierson	Pilcher
Pinney	Pinyard	Piper	Pippitt	Pitt	Pittman	Pittsburgh, Cincinnati, Chicago & St. Louis Railro
Pixler	Pizler	Plasterer	Plate	Plotner	Plummer	Poland
Poling	Pollitt	Polotinsky	Ponce	Pooler	Pope	Porchet
Porschet	Porter	Ports	Portz	Postle	Poston	Potter
Potts	Pounds	Powell	Power	Powers	Pratt	Predmore
Preisz	Pressman	Preston	Prettyman	Price	Prichard	Priest
Printz	Prosser	Prouty	Provost	Prugh	Pryne	Pugsley
Pullins	Purcell	Purdum	Pyers	Pyne