RT Journal Article SR Electronic A1 Lazar, Jan T1 JF Romanica Olomucensia YR 2013 VO 25 IS 1 SP 15 OP 19 DO 10.5507/ro.2013.002 UL https://romanica.upol.cz/artkey/rom-201301-0002.php AB This article focuses on anthroponyms forming the nicknames used by Internet users, particularly in real time communication on the Internet, i.e. chat communication. The main objective is to suggest a classification of nicknames based on an anthroponym and bring their exact quantification in this particular type of electronic communication. The richness of nicknames is illustrated by concrete examples taken from the corpus.