How do I change my display name in Zoom?

Your Zoom display name is fetched automatically from CERN Active Directory when you sign in using CERN SSO. This display name can be modified using your “Preferred First Name” and “Preferred Last Name” that can be changed from the CERN phonebook interface https://phonebook.cern.ch/profile.

Alternatively, you have the possibility to change your display name for each meeting you connect to https://support.zoom.us/hc/en-us/articles/115005759423-Managing-participants-in-a-meeting and https://support.zoom.us/hc/en-us/articles/201362193-Joining-a-Meeting.