Yes.
You can change the name of the group at any time from within the app.
- Open the group home screen
- Tap the three dot menu (top right), followed by 'Edit group'
- Type the new name directly in the name field and hit save (top right).
Administrators can also access the group's settings via web admin on desktop.
Changing the group name will not alter either your public or private URLs or email invite links. However, it might be confusing for current members or make it difficult to find so it's good practice to let members know if the name change is significant.