Gonzaga College moderator is held by a Jesuit priest. The role of the Moderator in the educational structure of the college is not merely the Deputy Principal of Student Affairs, but rather as a friend and spiritual guide for students to shape themselves into human beings for others: men and women for others.

Gonzaga College Moderator Staff for the 2021/2022 school year are:

1. Gerardus Hadian Panamokta, SJ (Moderator)
2. Fr. J. Aditya Christie Manggala, SJ
3. Bpk. J. Adianto
4. Bpk. Johanes S.M.
5. Ibu Agustina Anie
6. Bpk. P. Hari Prasetyo ( Senate Advisor )
7. Ibu Boima Turnip ( Moderate Administration Staff)