This feature is not provided in XWiki but here's a snippet you can use : ---------------------------------------8 <----------------------------------- #set ($tagToReplace = "tag1") #set ($newTag = "tag2") #set ($taggedDocs = $xwiki.searchDocuments(", BaseObject obj where doc.fullName=obj.name and obj.className='XWiki.TagClass'")) #foreach ($taggedDocName in $taggedDocs) #set ($taglist = "") #set ($taggedDoc = $xwiki.getDocument($taggedDocName)) #set ($taglist = $taggedDoc.getObject("XWiki.TagClass").get("tags")) #if ($taglist.contains($tagToReplace)) $taggedDoc.getObject("XWiki.TagClass").set("tags", $taglist.replaceAll("(^| +)$tagToReplace( +|$)", "$1$newTag$2")) * [$taggedDoc.fullName] : replacing tag "$tagToReplace" by "$newTag" #set ($discard = $taggedDoc.save()) #end #end ---------------------------------------8 <----------------------------------- Note that the regexp is not perfect but it's (ftm) kind of impossible to use backslashes when writting a regexp in a wiki page (because of multiple escaping). On Thu, Aug 28, 2008 at 12:12 PM, Bruno Neves &lt;bneves(a)gedi.pt&gt; wrote: > Greetings > > It's possible to rename a tag present in diferent pages at once, or > the only way is opening all the pages > where it is and rename it? > > Best regards > Bruno Neves