The court case of the Babiniotis Dictionary (Greek: Υπόθεση Λεξικoύ Μπαμπινιώτη) was fought in Greece over the legality of the publication of a Modern Greek dictionary that included a definition of the word "Bulgarian" (referring to a person or persons).
George Babiniotis, professor of linguistics at Athens University, managed the publication of a dictionary in 1998, named Dictionary of Modern Greek, more commonly known as Babiniotis Dictionary.
For the word "Bulgarian" the dictionary provided a dual definition, first its normal use referring to persons descended from Bulgaria, and second a definition marked as vulgar and derogatory to denote a fan of PAOK football team.
On 23 May 1998 a person took legal action asking for the second definition to be deleted.
The courts accepted the case with number 18134/1998 and agreed that the obscene definition had no place in a dictionary, so the publisher had to delete the second definition from every unsold copy of the dictionary or otherwise it couldn't be legally sold anymore.