In the New Testament, a young missionary companion of Paul during Paul's ministry (Acts 16: 1-3; 2 Tim. 1: 1-5); the son of a Greek father and Jewish mother; he and his parents lived in Lystra.

Paul spoke of Timothy as his "own son in the faith" (1 Tim. 1: 2, 18; 2 Tim. 1: 2). Timothy was perhaps Paul's most trusted and capable assistant (Philip. 2: 19-23).