| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Horst Zankl | Director | 1974 - 1976 | 2 | |||
| Robert Zyromski | Director | 1972 | 1 | 1 | ||
| Sarantos Zervoulakos | Director | 2009 - 2014 | 4 | |||
| Matjaž Zupančič | Director | 1981 | 1 | |||
| Elena Zikova | Director | 1981 | 1 | |||
| Stanisław Zajączkowski | Director | 1983 | 1 | |||
| Milt Zoth | Director | 2010 | 1 | |||
| Arie Zinger | Director | 1984 - 1999 | 4 | 1 | ||
| Augusto Zucchi | Director | 1990 | 1 | |||
| Stephen Zuckerman | Director | 1982 | 1 | 1 | ||
| Ondřej Zajíc | Director | 1995 | 1 | |||
| Jose Zayas | Director | 2002 | 1 | |||
| Sándor Zsótér | Director | 2005 - 2016 | 9 | 1 | ||
| David Zinder | Director | 2008 | 1 | 1 | ||
| Miroslav Zéda | Director | 1957 | 1 | 1 | ||
| Rudolf Zioło | Director | 1986 - 1989 | 2 | |||
| Jolanta Ziemiańska | Director | 1958 | 1 | |||
| Lidia Zamkow | Director | 1963 | 1 | |||
| Sandi Zielinski | Director | 2008 - 2015 | 2 | |||
| Farzad Ostovar Zadeh | Director | 2010 | 1 | |||
| Eric Zivot | Director | 2012 | 1 | 1 | ||
| Charles Zoeckler | Director | 1961 | 1 | |||
| Alize Zandwijk | Director | 2017 | 1 | 1 | ||
| Dietmar Zerwes | Director | 1999 | 1 | |||
| Fritz Zecha | Director | 1970 | 1 | 1 | ||
| Mia Zanette | Director | 2016 | 1 | |||
| Kostas Zogopoulos | Director | 1977 | 1 | |||
| Andrzej Zakrzewski | Director | 1977 | 1 | |||
| Jakob Ziegler | Director | 1921 | 1 | |||
| Peter Zazzali | Director | 2015 | 1 | |||
| Nan Zhang | Director | 2015 | 1 | |||
| Nikola Zavišić | Director | 2016 | 1 | |||
| E. Zolotarev | Director | 1941 | 1 | |||
| Arkadij Zakk | Director | 1964 | 1 | |||
| Jiemin Zhang | Director | 2020 - 2021 | 4 | |||
| Ke Zhou | Director | 2019 | 2 | |||
| Johannes Zametzer | Director | 2018 | 1 | |||
| Erich Zander | Director | 1933 | 1 | |||
| Gero Zambuto | Director | 1920 | 1 | |||
| Dina Zhumbay | Director | 2023 | 1 | |||
| Giancarlo Zagni | Director | 1956 | 2 | |||
| Michelangelo Zeno | Director | 2014 | 3 | |||