ReNamer is a very powerful and flexible file renaming tool, which offers all the standard renaming procedures, including prefixes, suffixes, replacements, etc

Phatch (PHoto & bATCH) is a raster graphics editor used to batch process digital graphics and photographs. Phatch can be used on the desktop as a GUI program …

Flash Renamer is a mass file renaming utility.

Ant Renamer is a free program that makes easier the renaming of lots of files and folders at once.

Flexible Renamer is a free tool for renaming files and folders, either singly or in large batches, including subfolders.

Rename Master is a bulk renaming software.