List of male tennis players

To keep it at a reasonable length, the following is (only) a list of male tennis players from over the years who in singles have been ranked in the top 25 in the 'open era', in the top few prior to the open era, quarter-finalists or better in a Grand Slam tournament, or medalists at the Olympic Games, or who in doubles have won a Grand Slam or Olympic tournament or been ranked No 1.

O & P

• Alex O'Brien - (USA) - doubles specialist
• Tom Okker - (Netherlands)
• Alex Olmedo - (1936-) - (Peru / U.S.)
• Manuel Orantes (1949-) - (Spain)
• Jim Osborne (1945) - (USA) - '71 U.S. Open quarterfinalist
• Rafael Osuna (1938-1969) - (Mexico)
• Adriano Panatta (1950-) - (Italy)
• Leander Paes (1973-) - (India) - doubles specialist
• Jared Palmer - (USA) - doubles specialist
• Onny Parun - (New Zealand)
• David Pate - (United States)
• Andrew Pattison (1949) - (South Africa/USA)
• Andrei Pavel - (Romania)
• Victor Pecci (1955-) - (Paraguay)
• Guillermo Perez-Roldan (1969-) - (Argentina)
• Mikael Pernfors - (Sweden)
• Fred Perry (1909-1995) - (England)
• Yvon Petra (1916-) - (France)
• Hank Pfister (1953) - (U.S.) - 1978, 1981 and 1982 Australian Open semi-finalist; World No. 19 in 1983
• Mark Philippoussis (1976-) - (Australia) - 1998 U.S. Open finalist; 2003 Wimbledon finalist
• Barry Phillips-Moore (1937-) (Australia) - 1968 Australian Championships semi-finalist; 1971 Australian Open quarter-finalist
• Nicola Pietrangeli (1933-) - (Italy)
• Nikki Pilic - (Yugoslavia) - one of the "Handsome Eight"
• Cedric Pioline - (France) - 1993 U.S. Open finalist; 1997 Wimbledon finalist; 1998 French Open semi-finalist
• Han Jurgen Pohmann (1947-) - (West Germany) - 1974 French Open quarter-finalist
• Goran Prpi? - (Yugoslavia/Croatia)
• Patrick Proisy (1949-) - (France) - World No. 23 in 1973; 1973 French Open finalist
• Mariano Puerta - (Argentina) - 2005 French Open finalist
• Jim Pugh - (U.S.) - doubles specialist
• Mel Purcell (1959) - (U.S.) - World No. 21 in 1980