The concept of apostolicity becomes enshrined in Christian orthodoxy with the 381 revision to the Niceno-Constantinopolitan Creed and Christians for nearly two millennia have confessed that, in addition to being one, holy, and catholic, the church is also apostolic. For generations that term has been taken to be coterminous with episcopal succession, but a careful reading of Patristic sources reveals that episcopal succession is one of the primary expressions of apostolicity in the early church, but not its actual substance. The claim of this presentation is that the Protestant Reformers recovered the true Patristic meaning of apostolicity, which is simply that the church proclaims the same gospel that Jesus Christ charged his apostles themselves to preach and which they taught to the churches they founded and led. To make this case I will engage the historical surveys of McCue, Burghardt, and Burkhard to review the relevant passages from I Clement, Irenaeus, Tertullian, Clement of Alexandria, Origen, Cyprian, and Augustine to determine both the general shape of Patristic understanding of apostolicity and its trajectory, which my explain why it became so associated with the episcopacy. I will then compare the Patristic view with passages from the Magisterial Reformers Luther, Calvin, Melanchthon, drawing on the work of Oberman, Wendebourg, McNutt, and Mantesch. I will additionally review major 16th and 17th century Protestant confessions. All of this will demonstrate the similarity between Patristic and Reformation language surrounding apostles, apostolicity, and succession. My case is that, despite the fact that both Roman Catholics and Protestant reformers assume that apostolicity primarily has to do with bishops and succession, nevertheless it is the Reformers whose views on the subject mirror the Patristic perspective most closely by focusing primarily on witness and gospel proclamation rather than an institutional succession or office. I propose that it is this core apostolicity of testimony to the gospel of Jesus Christ that needs to be retrieved again today for the sake of ecumenical dialogue and the continuing struggle toward holiness, unity, and catholicity in the twenty-first century church.