| Type | Cover | Title  | Date | Source | ||
| Audio |  |
Z - the Masked Musical |  | 1998 | Concept Album | |
| Audio |  |
Z Wie Züri | 1976 | Original Swiss Cast | ||
| Audio |  |
Zaad Van Satan | 2002 | Belgian Cast | ||
| Audio |  |
Zack, Jr. | 1972 | Concept Recording | ||
| Audio |  |
Zanna, Don't! | | 2003 | Original Off-Broadway Cast | |
| Audio |  |
Die Zauberorgel | 1976 | Original Zurich Cast | ||
| Audio |  |
Der Zauberwald II (Goa: Der Zauberwald II) | 2001 | Original Cast Recording | ||
| Audio |  |
Der Zauberwald | 1996 | Original Cast | ||
| Audio |  |
Zaufke Songbook | 2002 | Various | ||
| Audio |  |
Zeemeeuw (Op Hoop Van Zegen) | | 2008 | Job Bovelander | |
| Noncommercial Audio |  |
Zelda (Waiting for the Moon) | 2005 | Demo | ||
| Video |  |
Zeldzaam | 1989 | Original Dutch Cast | ||
| Audio |  |
Zenda | 1963 | San Francisco Cast | ||
| Audio |  |
Zero Patience | 1994 | Film Soundtrack | ||
| Audio |  |
De Zevensprong | 2004 | Original Dutch Cast | ||
| Noncommercial Audio |  |
Zhivago | 2002 | Demo | ||
| Noncommercial Audio |  |
Zhivago | 2006 | La Jolla Playhouse | ||
| Audio |  |
Ziegfeld | 1988 | Original London Cast | ||
| Video |  |
Ziegfeld Follies (Ziegfeld Follies of 1946) | 1946 | Film | ||
| Audio |  |
Ziegfeld Follies (Ziegfeld Follies of 1946) | | 1946 | Film Soundtrack | |
| Audio |  |
Ziegfeld Follies of 1919 | N/A | Members of the Original Cast | ||
| Audio |  |
Ziegfeld Follies of 1934 | 1935 | Original Broadway Cast | ||
| Audio |  |
Ziegfeld Follies of 1936 | | 1999 | New York Concert Cast | |
| Audio |  |
The Ziegfeld Follies | N/A | Various artists | ||
| Audio |  |
Ziegfeld Girl | 1941 | Film Soundtrack | ||
| Video |  |
Ziegfeld Girl | 1941 | Film | ||
| Audio |  |
MARKED FOR DELETION Zing A Little Bing | 1999 | Andrew Parks | ||
| Audio |  |
Zing Vecht Huil Bid Lach Werk En Bewonder: Ode Aan Ramses! | 2005 | Original Dutch Cast | ||
| Audio |  |
Zip Goes a Million | N/A | Original London Cast | ||
| Audio |  |
Zip Goes a Million | 2001 | London Concert Cast | ||
| Audio |  |
Zipp! One Hundred Musicals for Less Than the Price of One (Zipp!) | 2004 | Original London Cast | ||
| Audio |  |
Zombie Ball (Zombie Prom) | 1994 | Meiningen, Germany | ||
| Audio |  |
Zombie Prom | 1996 | Original Off-Broadway Cast | ||
| Video |  |
Zombie Prom | 2006 | Short Film | ||
| Audio |  |
Zombies From the Beyond | 1996 | Original Off-Broadway Cast | ||
| Audio |  |
The Zoo | 1972 | Fulham Light Opera | ||
| Audio |  |
The Zoo | 1978 | The D'Oyly Carte Opera Company | ||
| Noncommercial Video |  |
De Zoon Van Louis Davids | 1983 | Original Dutch Cast | ||
| Audio |  |
De Zoon Van Louis Davids | 1983 | Original Dutch Cast | ||
| Noncommercial Audio | |
Zorba | N/A | Demo | ||
| Audio |  |
Zorba | 1971 | Vienna Cast | ||
| Audio |  |
Zorba | | 1983 | Broadway Cast | |
| Audio |  |
Zorba | 1988 | Hungarian Cast | ||
| Noncommercial Audio |  |
MARKED FOR DELETION Zorba | 2003 | Romay Producciones | ||
| Audio |  |
Zorba | 2003 | Spanish Cast | ||
| Audio |  |
Zorba / Canterbury Tales / Celebration (Zorba) | 1968 | Original Broadway Cast | ||
| Audio |  |
Zorba / Canterbury Tales / Celebration (Celebration) | 1969 | Original Broadway Cast | ||
| Audio |  |
Zorba / Canterbury Tales / Celebration (Canterbury Tales) | 1969 | Original Broadway Cast | ||
| Noncommercial Audio |  |
Zorro | N/A | Demo | ||
| Audio |  |
Zorro | 2008 | Original London Cast |