Serrapilli were a Celtic tribe that migrated to Upper Pannonia in Illyria. They together with the Serretes lived on both sides of the Drava.
See also 
- ^ Dictionary of Greek and Roman Geography (1854) William Smith, LLD, Ed. ,The following are the principal tribes noticed by the ancients in Pannonia ; some of them, it must be observed, are decidedly Celtic. In Upper Pannonia we meet with the AZALI, CYTNI, BOII, COLETIANI, OSERIATES, SERRETES, SERRAPILLI
- ^ http://books.google.se/books?id=VzwZAAAAYAAJ