A foster-child, an Ephesian who accompanied Paul during a part of his third missionary journey ([Acts 20:4](/acts#Acts.20.4); [21:29](/acts#Acts.21.29)). He was with Paul in Jerusalem, and the Jews, supposing that the apostle had brought him with him into the temple, raised a tumult which resulted in Paul’s imprisonment. (See TEMPLE, HEROD’S.) In writing to Timothy, the apostle says, “Trophimus have I left at Miletum sick” ([2 Tim. 4:20](/2tim#2Tim.4.20)). This must refer to some event not noticed in the Acts.