Hi Jessica,

Since there isn't a utility, you could

1.  Export all the workflow definitions (ctrl + click can select multiple workflows on the export screen)
2.  Open them in Notepad++
3.  Do a find and replace on the values

The .wfi files are xml and editable but depending on your comfort level and the task at hand, it may be easier to use the workflow designer and manually update each portion.

Here's an example of the field names within an "Assign Field Values" activity. In this case I have two field names, "Full Title" and "Sections". Both are string types.

<FieldValue>
  <Field>Full Title</Field>
  <Type>String</Type>
  <Multivalued>false</Multivalued>
  <MultivalueHandling>Append</MultivalueHandling>
  <Values>
    <Value>%(PatternMatching_chapterTitle)</Value>
  </Values>
</FieldValue>
<FieldValue>
  <Field>Sections</Field>
  <Type>String</Type>
  <Multivalued>true</Multivalued>
  <MultivalueHandling>Replace</MultivalueHandling>
  <Values>
    <Value>%(Checkforrepealed_repealText)</Value>
  </Values>
</FieldValue>

So in theory if you had very unique field names (which wouldn't conflict with token names or other names appearing in the workflow) you could do a search and replace on ">Old Name of Field</" : ">New Name of Field</". Leaving the > and </ in to ensure it's the full xml value denoted in the workflow definition file.