Only certain members can usually rename a group
Depending on the group's settings, only admins may be allowed to edit the group name and photo β if you don't see an editable name field, check with a group admin about the group's settings.
Renaming doesn't affect one-on-one chats
This only applies to group chats. A one-on-one conversation is always labeled with that person's own profile name, and there's no separate "chat name" to edit there.
Frequently Asked Questions
Does the name I set show up for every member?
Yes β renaming a group updates the name on every member's screen at once, and a system note marking the change appears in the chat history.
Can I rename a one-on-one chat too?
No β that option only exists for group chats. A one-on-one conversation always displays the other person's own profile name instead.