A name mentioned three times in the New Testament. It is uncertain if it refers to only one individual. Although, in each case, Erastus is a helper of the apostle Paul. The three mentions of Erastus in the New Testament are:
A helper of Paul sent with the apostle Timothy into Macedonia (Acts 19:22).
The city treasurer of Corinth, an official who managed finances. He might have been a slave or a wealthy freed slave and an important man in the Corinthian community. He sends greetings with Paul to the church in Rome (Romans 16:23).
A friend of Paul who stayed at Corinth (2 Timothy 4:20).