| Pace | Carmelo | Quartetto Lirico (1956) |  |
| Pachelbel | Johann | Canon in D, arranged by John A. Dempsey |  |
| Paciorkewicz | Tadeusz | Piano Quartet (1972) |  |
| Padding | Martijn | Short Histories on Nothing : Version for piano quartet (2009/2024) |  |
| Pade | Steen | Lamento, for Klaverkvartet (1991) |  |
| Padros | David | Gjatans (1993) |  |
| Paganini | Nicolo | Caprice No.24 arr. for piano quartet, arranged by Julia Samarska |  |
| Paisiello | Giovanni | 12 quartets |  |
| Pallasz | Edward | Apostrofa (1988) |  |
| Palmer | Robert | Quartet for piano and strings (1947) |  |
| Palmer | Robert | Quartet no. 2 for piano and strings (1974) |  |
| Palmer | George | Pianoquartet |  |
| Palmer | Robert | Quartet no 1 for piano and strings (1947) |  |
| Palsson | Pal Pampichlar | Pianokvartett (fiola, viola, sello och piano) (2003) |  |
| Palsson | Pall P. | Notturno II |  |
| Pan | Huang-long | Yin-Yang III Music for Piano Quartet (1993) |  |
| Panufnik | Roxanna | Let me B |  |
| Papaioaunnou | Giannes A. | Piano quartet |  |
| Papini | Guido | Quartet |  |
| Paque | M. J. L. Desire | Quartet |  |
| Park | James | River Portrait: Au Sable (1992) |  |
| Parker | Horatio W. | Theme and variations in G minor (1902) |  |
| Parkinson | Cory A. | Antagonista (Piano Quartet in c minor) |  |
| Parkinson | Tim | Quartet for piano, violin, viola, cello (1996) |  |
| Parry | Charles H.H. | Quartet in As (1879) |  |
| Parry | Charles H.H. | Andante (1868) |  |
| Partos | Oedoen | Ballade for piano quartet (1977) |  |
| Paterson | Jim | My tender love |  |
| Patterson | Paul | Oriental Sketch (2010) |  |
| Pauer | Ernst | Opus 44bis (c.1860) |  |
| Paul | Paul | Concerto pour quattuor à cordes |  |
| Pauletta | Gianandrea | Nascere, Ad Hoc nr 3 for piano quartet |  |
| Pauletta | Gianandrea | La Nozze, Ad Hoc nr. 6 for piano quartet |  |
| Paumgartner | Hans | Quartet in c (c.1888) |  |
| Paus | Marcus | Intrada (2011) |  |
| Pawollek | Roman | Klavierquartett (2009) |  |
| Pawollek | Roman | Klavierquartett (2008) |  |
| Payne | Anthony | Piano Quartet (2014) |  |
| Paz | Erel | Bruckner\'s Force for piano Quartet (2002) |  |
| Pedrollo | Arrigo | Quartet (1941) |  |
| Pejacsevics | Dora | Opus 25 in d (1910) |  |
| Pejtsik | Arpad | Music for piano quartet: for beginners (first position)(2000) |  |
| Pelecis | Georgs | Autumn Landscape (Rudens Ainava) : for piano quartet (2019) |  |
| Pellegrini | Ernesto P. | In Memoria (2002) |  |
| Pelosi | Louis | Pianoquartet (1985) |  |
| Penard | Olivier | Phantasy Opus 25 |  |
| Penicka | Miloslav | Pianoquartet (1999) |  |
| Pentland | Barbara | Piano Quartet (1939) |  |
| Perez Casas | Bartolome | Pianoquartet in d (1902) |  |
| Perger | Richard von | Opus 14 in A (1889) |  |
| Pesson | Gerard | Mes beatitudes (1995) |  |
| Pesson | Gerard | Presque puzzle (2009) |  |
| Peters-Rey | Gregor | Andante Commodo fur Violine, Viola, Violoncello und Klavier Opus 78 |  |
| Petersen | Wilhelm | Opus 42 in c (1943) |  |
| Petit | Camille | Opus 14 |  |
| Petric | Ivo | Rondeau for pianoquartet |  |
| Petty | Thom | Winner of the Primrose piano quartet "write your own variation" competition (2010) |  |
| Pfeiffer | Georges J. | Opus 119 in f (1890) |  |
| Pfeiffer | Rudolph | Quartet |  |
| Philipp | Franz | Opus 13 in c (c.1930) |  |
| Philips | Burill | Partita (1947) on two Russian folksongs |  |
| Piazzola | Astor P. | Fugata (rev. by Arcangelo Piano quartet) |  |
| Piazzola (See also Leonid Destyanikov) | Astor P. | Tracing Astor (arr. for piano quartet by Leonid Desyatnikov) |  |
| Pimsleur | Salomon | Piquant Sonata Opus 104 |  |
| Piniella | Oscar | Cuarteto con piano |  |
| Pinson | Craig Davis | Equivocal Statements (2011) |  |
| Pipkov | Lyubomir | Quartet (1938) |  |
| Pishny-Floyd | Monte K. | Piano quartet (1966) |  |
| Pishny-Floyd | Monte K. | Passacaglia and quadruple fugue (2002) |  |
| Piston | Walter H. | Quartet (1964) |  |
| Pitombeira | Liduina | Seresta no 5 Opus 62 b (2001) |  |
| Pitts | John | Piano Quartet (2003) |  |
| Pixis | Johann P. | Quatuor pour piano,violon,alto et violoncello Opus 4 |  |
| Pleskow | Rauol | Six fancies on pictures of Klee (2001) |  |
| Pleyel | Ignaz J. | Opus 44 |  |
| Pleyel | Ignace | Quartetto I in Es Dur, opus 111 |  |
| Pleyel | Ignace | Quatuor in B-Dur, arrange pour le clavecin ou fortepiano avec\'accompagnement d\'un violin, alto et violoncelle par C.F. Beck Opus 354 |  |
| Pleyel | Ignace | Quatuor In D-Dur Opus 324 |  |
| Pleyel | Ignace | Quartetto II in f-Moll, Opus 277 (arr. L.V.Lachnith) |  |
| Pleyel | Ignace J. | Rondo |  |
| Plum | Abram M. | Piano Quartet (1991) |  |
| Podvala | Valery | Piano Quartet (1976) |  |
| Pohjola | Seppo | Dance in the rain, In memoriam Gene Kelly (1996/2005) |  |
| Pohjola | Seppo | New York, New York (2001) |  |
| Pohjonen | Joonas | Movimento (2001) |  |
| Pokorny | Petr | Music to quiet festivities of summer daybreaks (2005) |  |
| Polglase | John | Piano Quartet |  |
| Polovinkin | Leonid | Piano Quartet No. 1 (1936) |  |
| Polovinkin | Leonid | Piano Quartet No. 2 (1944) |  |
| Polsterer | Rudolf | Quartet in f (1921) |  |
| Pontichelli | Amilcare | Piano Quartet |  |
| Poole | Geoffry | Look behind you! |  |
| Poot | Marcel | Quatour a clavir (1932) |  |
| Pop-Mearini | Eugene | Quartet (1877) |  |
| Popovici | Elise | Patru Miniaturi pentru vioara,viola,violoncel si pian (1969) |  |
| Pott | Francis | By Yon Castle wa (2009) |  |
| Pous | Marcus | Intrada (2011) |  |
| Powers | Anthony | Nightsongs (2007) |  |
| Prada Diaz | Nicolás | Reflections on Mahler |  |
| Praeger | Ferdinand | Quatuor pour piano, violon, viola and cello in F major |  |
| Prasent | Gerhard | Gershwin- prelude (1981) |  |
| Prescott | Oliveira L. | Piano Quartet in G Major |  |
| Presley | Elvis | Can't Help Falling In Love. Piano Quartet. Violin, Viola, Cello and Piano. Arranged by Thomas Quigley. |  |
| Previn | Andre | A bridge between two worlds (2000) |  |
| Profos | Felix | Four Walls, pianoquartet (1999) |  |
| Profos | Felix | Leonardo, for piano quartet (2010) |  |
| Prout | Ebenezer | First Pianoquartet Opus 2 in C Major (ca.1865) |  |
| Prout | Ebenezer | Second Pianoquartet Opus 18 in FMajor (1881) |  |
| Pruissia | Louis Ferdinand von | Opus 4 in Bes Andante mit Variationen |  |
| Pruissia | Louis Ferdinand von | Opus 6 in f (publ 1806) |  |
| Pruissia | Louis Ferdinand von | Opus 5 Pianoquartet no 2 in E flat major (publ.1806) |  |
| Puchtler | Wilhelm Maria | Notturno, Op.9 |  |
| Puetz | Friedrich | Klavierquartett |  |
| Puetz | Friedrich | Quartet für Violine, Viola, Violoncello und Klavier |  |