* J. is sometimes used as an abbreviation for "judge" in legal documents or references, but it's not as widely recognized as other professional abbreviations like "Dr." or "Mr./Ms."
* Judg. is a less common abbreviation, but it's not widely accepted or used.
* Hon. is used as an honorific title for judges, not a suffix abbreviation.
It's best to use the full title "Judge" or the appropriate formal address, such as "Your Honor" when referring to a judge.