The Second Epistle to the Thessalonians is a Pauline epistle from the New Testament of the Christian Bible. It is traditionally attributed to Paul the Apostle, with Timothy as a co-author. Its authorship is disputed, with critical commentators being evenly divided on Pauline authorship. Those who reject its authenticity point to differences in style and theology between it and the First Epistle to the Thessalonians, which is undisputed.
Scholars who support its authenticity view it as having been written around 51–52 AD, shortly after the First Epistle. Those who see it as a later composition assign a date of around 80–115 AD.