
You can change folder name!
VBA Code
As an example, change the folder name of the folder “hogehoge” to “piyopiyo”.

Option Explicit
Sub sampleProc()
Dim fso As Object
Dim folderFullPath As String
Dim newFolderName As String
'Set "Folder path before change"
folderFullPath = "C:\Users\user\Desktop\hogehoge"
'Set "Folder name after change"
newFolderName = "piyopiyo"
Set fso = CreateObject("Scripting.FileSystemObject")
'Rename Folder
fso.GetFolder(folderFullPath).Name = newFolderName
Set fso = Nothing
End Sub
Result
You changed folder name!

FYI
For more information about following, see the following official online manual:
●“GetFolder method” of “FileSystemObject”
●“Name property” of “Folder Object”