* Reverse spelling: This is a general term that describes any word or phrase spelled backward.
* Anagram: While not specifically for names, an anagram is a word or phrase formed by rearranging the letters of another. So, a name spelled backward could be considered an anagram of the original name.
* Backwards name: This is a simple and straightforward term that clearly describes the concept.
Ultimately, the best term to use will depend on the specific situation and how you want to communicate the idea.