The Minor Prophets or Twelve Prophets (Hebrew: תרי עשר‎, Trei Asar, "The Twelve"), occasionally Book of the Twelve, are the collection constituting the last book of the Jewish Tanakh's Nevi'im and the last twelve books of the Old Testament; the terms "minor prophets" and "twelve prophets" can also refer to the twelve writers of these prophetic works. The collection of writers and works are commonly studied together, and are consistently ordered in Jewish, Protestant and Catholic Bibles as:

However in many Christian Orthodox Bibles they are ordered according to the Septuagint thus:

The term "Minor" relates to the length of each book (ranging from a single chapter to fourteen); even the longest is short compared to the three major prophets, Isaiah, Ezekiel and Jeremiah. It is not known when these short works were collected and transferred to a single scroll, but the first extra-biblical evidence we have for the Twelve as a collection is c.190 BCE in the writings of Jesus ben Sirach, and evidence from the Dead Sea Scrolls suggests that the modern order was established by 150 BCE. It is believed that initially the first six were collected, and later the second six were added; the two groups seem to complement each other, with Hosea through Micah raising the question of iniquity, and Nahum through Malachi proposing resolutions.