- P&O Liberte (2023)
- P&O Pioneer (2023)
- P&OSL Aquitaine (1992)
- P&O SL Burgundy (1993)
- P&OSL Calais (1987)
- P&OSL Canterbury (1980)
- P&OSL Dover (1987)
- P&O SL Provence (1983)
- P+S Stralsund 502 (2012)
- P+S Stralsund 503 (2012)
- Pacific Star (1967)
- Paglia Orba (1994)
- Palanga (1979)
- Palau (1969)
- Paloma (1980)
- Paloma I (1980)
- Panagia Ekatontapiliani (1972)
- Panagia Skiadeni (1990)
- Panagia Tinou (1972)
- Panny (1942)
- Panther (1976)
- Paolo Veronese (1986)
- Paraguana I (1996)
- Paros Jet (1996)
- Pascal Lota (2008)
- Pascal Paoli (2003)
- Pasiphae (1998)
- Pasiphae Palace (1998)
- Patra Express (1968)
- Patria Seaways (1992)
- Patricia (1967)
- Pau Casals (1998)
- PCE-830 (1943)
- Pearl of Scandinavia (1989)
- Pearl Seaways (1989)
- Peder Olsen (1974)
- Peder Paars (1985)
- Pegasus (1975)
- Pegasus One (1996)
- Pegasus Two (1997)
- Pellworm (1966)
- Pescara Jet (1997)
- Peter Pan (1974)
- Peter Pan (1986)
- Peter Pan (1988)
- Peter Pan IV (1988)
- Peter Pan (2001)
- Peter Pan (2022)
- Peter Wessel (1981)
- Petersburg (1986)
- Phoenix (1986)
- Phoenix Express (1993)
- Piana (2011)
- Pielinen (1958)
- Piero della Francesca (1980)
- Pilar Del Mar (2008)
- Piret (2017)
- Pluto (2004)
- PO Burgundy (1993)
- PO Canterbury (1980)
- PO Calais (1987)
- PO Dover (1987)
- PO Provence (1983)
- Polarlys (1996)
- Polonia (1995)
- Pomerania (1978)
- Poniente Jet (1999)
- Pont L´Abbe (1978)
- Port Link (1981)
- Porto Cardo (1980)
- Portsmouth Express (1998)
- Poseidon Express (1990)
- Poseidonas (2010)
- Povl Anker (1978)
- Pray (1974)
- Pride (1987)
- Pride of Aquitaine (1992)
- Pride of Bilbao (1986)
- Pride of Burgundy (1993)
- Pride of Calais (1987)
- Pride of Canterbury (1991)
- Pride of Dover (1987)
- Pride of Kent (1992)
- Pride of Le Havre (1989)
- Pride of Portsmouth (1990)
- Pride of Provence (1983)
- Pride of Telemark (1983)
- Pride of York (1987)
- Primrose (1975)
- Prince (1972)
- Prince (1974)
- Prince (1980)
- Prince of Brittany (1970)
- Prince of Fundy (1970)
- Prince of Scandinavia (1975)
- Princess (1974)
- Princess Maria (1981)
- Princess of Norway (1986)
- Princess of Scandinavia (1976)
- Princess Seaways (1986)
- Princessan (1966)
- Princesse Marie-Christine (1975)
- Prins Bertil (1960)
- Prins Joachim (1980)
- Prins Filip (1992)
- Prins Hamlet (1973)
- Prins Richard (1997)
- Prinsessan Birgitta (1974)
- Prinsessan Christina (1969)
- Prinsessan Desirée (1965)
- Prinsessan Desiree (1971)
- Prinsessan Margaretha (1955)
- Prinsesse Benedikte (1997)
- Prinsesse Isabella (2015)
- Prinsesse Ragnhild (1981)
- Prinz Hamlet (1973)
- Prinz Oberon (1970)
- Prokopios (1987)
- Prokopios Fragkos (1987)
- Prometheus (2001)
- Prostvik 1 (1983)
- Puma (1975)