| Zach | J | Opus 21 Variations concertantes (1846) |  |
| Zach | J . | Opus 22 in D (1848) |  |
| Zach | J. | Opus 30 Deux themes nationaux varies (1853) |  |
| Zahler | Noel | Le miroir de l'ombre (2011) |  |
| Zahrabyan | Ashot | Novelette (1009) |  |
| Zamir | Ron | Piano Quartet (1983-1985) |  |
| Zarebski | Juliusz | Piano Quartet in g minor Opus 34 (1885) |  |
| Zavertal | Ladislao | Piano Quartet in D-flat(1877) |  |
| Zebeljan | Isodora | The Cherry Orchard (Višnjik) : for piano quartet (2000/2001) |  |
| Zecchi | Adone | Quatuor du temps perdu (1960) |  |
| Zeckwer | Camille W. | Opus 9 |  |
| Zelenski | Wladislaw | Opus 61 in c (1910) |  |
| Zellner | Julius | Opus 23 in c (1880) |  |
| Zellner | Julius | Opus 28 in Bes |  |
| Zemek (Novak) | Pavel | Marian Variations (Painswick Cathedral) (1999-2000) |  |
| Zemlinsky | Alexander von | Klavierquartett D-Dur (1893) |  |
| Zimmerman | Antonio | Y Vuelta (2002) |  |
| Zimmerman | Agnes M.J. | Piano Quartet in c minor |  |
| Zimmermann | Walter | Schatten der Ideen (1993) |  |
| Zinovjev | Sauli | Piano Quartet Chasse-Neige (2014); Syrjä (2016). |  |
| Zipp | Friedrich | O, du lieber Augustin; Im Stil beruhmter Komponisten |  |
| Zolotarev (Zolotaryov) | Vasily A. | Opus 13 in d (c.1905) |  |
| Zulehner | Carl (Charles) | Opus 12 |  |
| Zur | Menachem | Discussions #9 (2004) |  |
| Zur | Menachem | Discussions No. 9, for Piano Quartet (2004) |  |
| Zurron | Vincente | Quartet (1901) |  |
| Zwaag | Wim | Beyond the misty doors of memory (2005) |  |