Change your name
By default, everyone can change their name in Zulip. You can write your name in any language you'd like.
From your desktop, click on the gear () in the upper right corner.
Select Settings from the dropdown.
Click the button with your name in it, under User settings.
Note: If clicking on the button doesn't work, check that your organization allows name changes. Follow the steps at prevent users from changing their names and see if the relevant box is checked.
Change your name, and click Save.