Most famous as the name of KingPepin the Short, this choice might feel somewhat belittling. The even-shorter form is Pippin, a name adopted for musical theater, and the Dutch form Pepijn is in that country's Top 100.
Pepin the Younger, often mistranslated to Pepin the Short, the King of Franks and
the father of Charlemagne
Pepin the Hunchback, the eldest son of Charlemagne,
Pepin of Italy, the second son of Charlemagne, originally named Carloman he was
rechristened Pepin a few years later.