Publius Suillius Rufus was a Roman statesman who served as suffect consul in AD 41.
Suillius was Claudius' senatorial lieutenant and Germanicus' quaestor. Suillius notably prosecuted many of Gaius Silius' clients. In an attempt to bring down Suillius, Silius demanded that Senate enforce Lex Cincia.Sejanus accused him of corruption and Suillius was later convicted and banished.
Suillius was the son of Vistilia and half-brother of Caesonia. He married Ovid's stepdaughter. Due to a scandal involving Messalina, their son Suillius Caesoninus was banished.