Jami' at-Tirmizi (Arabic: جامع الترمذي‎, Jāmi' at-Tirmizī), also known as Sunan at-Tirmizi (Arabic: سُـنَن الترمذي‎, Sunan at-Tirmizī), is one of the Kutub al-Sittah (six major hadith collections). It was collected by Abu ʿIsa Muhammad ibn ʿIsa at-Tirmidhi. He began compiling it after the year 250 A.H. (A.D. 864/5) and completed it on the 10 Dhu-al-Hijjah 270 A.H. (A.D. 884, June 9). It contains 3,956 Ahadith, and has been divided into fifty chapters. It is also classified as a Sunan, which implies that the book has been chapterised according to legal chapters, such as Purification, Prayer, Poor-due and Fasting, narrated on the authority of Islamic prophet Muhammad, while the opinions of the companions are usually not mentioned.

It contains more than 3,900 hadith collection and categorized into different books as below.