Pantelis is of Greek origin, derived from the Latin word 'Panthera', meaning 'panther'. This name has been traditionally used in Greece and Cyprus, where it was particularly popular during the 19th and early 20th centuries.
"Pantelis as a baby name had its peak popularity between 1974 and 1977 with consistently high numbers of births each year during this period. However, it appears to have been less popular since the late 1980s, with fewer than 10 births recorded per year from 1996 onwards."