JSPWiki's Haddock template supports custom fonts for adding visual enhancement to wiki content. TrueType, OpenType, and Web Open Font formats are supported.
Two methods are available for using custom fonts. First, you can upload the desired font as a page attachment, then insert some custom CSS referencing the font with associated text styling:
Alternatively, if your wiki has internet access you can remotely load fonts from Google's font repository. For a live example of this, see here.
For more information on using fonts in JSPWiki, check out the Category.Font Style page on the documentation wiki.