| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Kan Yamaguchi | Lighting Designer | 1991 | 1 | |||
| Yoshinori Yamamoto | Lighting Designer | 1996 - 2006 | 4 | |||
| Eiichi Yoshikura | Lighting Designer | 1997 | 1 | |||
| Ahmedul Kabir Young | Lighting Designer | 2006 | 2 | |||
| Xu Yin | Lighting Designer | 2006 | 1 | |||
| Gyo Yamaguchi | Lighting Designer | 2009 | 1 | |||
| William W. Young | Lighting Designer | 1965 | 1 | |||
| Yoshinori Yamamoyo | Lighting Designer | 2008 | 1 | |||
| Cem Yilmazer | Lighting Designer | 2010 | 1 | |||
| Wang Yibo | Lighting Designer | 2010 | 2 | |||
| Ken Yunker | Lighting Designer | 1998 | 1 | |||
| Chunyuan Ye | Lighting Designer | 1983 | 1 | |||
| Haruo Yamauchi | Lighting Designer | 1998 | 1 | |||
| Cem Yılmazer (Cem Yilmazer) | Lighting Designer | 2012 | 1 | |||
| Xiaoguang Yang | Lighting Designer | 2017 | 3 | |||
| Lindsey Young | Lighting Designer | 2016 | 1 | |||
| Kemal Yiğitcan | Lighting Designer | 2018 | 1 | |||
| Cem Yılmazer | Lighting Designer | 2019 | 1 | |||
| Haniyeh Yusefi | Lighting Designer | 2021 | 1 | |||
| Ken Yajima | Dramaturg | 2007 | 1 | |||
| Ming-zhi Yang | Dramaturg | 2013 | 1 | |||
| Tunç Yalman | Director, Translator | 1971 - 2014 | 3 | 1 | ||
| Kazuya Yamada | Director | 1955 | 1 | |||
| Dan Yurgaitis | Director | 2004 | 1 | |||
| Bai Yaocan | Director | 1997 | 1 | |||
| Kfir Yefet | Director | 2009 | 1 | 1 | ||
| Gamal Yakout | Director | 2006 | 3 | |||
| Evan Yionoulis | Director | 2009 | 1 | 1 | ||
| Zhu Yuanyuan | Director | 2010 | 1 | |||
| Sergei Yursky | Director | 1998 | 1 | |||
| Yossi Yzraely | Director | 1971 - 2022 | 2 | |||
| James Yost | Director | 2014 | 1 | |||
| Jeremy Young | Director | 1975 | 1 | |||
| Océane Yard | Director | 2017 | 1 | |||
| Wang Yabin | Director | 2022 | 1 | |||
| Cary Yerves | Designer, Lighting Designer | 1966 | 2 | |||
| Dariusch Yazdkhasti | Designer, Director | 2013 - 2017 | 4 | |||
| Kenkichi Yoshida | Designer | 1925 - 1928 | 5 | |||
| Chen Yongjing | Designer | 1956 | 1 | |||
| Zhang Yunchao | Designer | 2010 | 1 | |||
| Michael Yeargan | Designer | 1978 - 2010 | 3 | 1 | ||
| Pekka Ylinen | Designer | 1980 | 1 | |||