*''The [[Didache]]''
*''The [[Epistle of Barnabas]]''
*Seven short ''[[Epistles'' of [[Ignatius of Antioch]] '' (the longer forms of these Epistles, and those beyond the seven, are widely considered later emendations and forgeries)
*''The [[Epistle of Polycarp]]''
*''The [[Martyrdom of Polycarp]]''