The Thawri (Arabic:الثوري) Madhhab was a short lived school of Islamic Jurisprudence. Its founder was Sufyan Al-Thawri, a great 8th Century scholar, jurist and hadith compiler.
After Ath-Thawri's move to Basra later in his life, his jurisprudential thought (usul) became more closely aligned to that of the Umayyads and of Al-Azwa'i. He is reported to have regarded the physical jihad as an obligation only as a defensive war.
He spent the last year of his life hiding after a dispute between him and the Abbasid Caliph Muhammad Ibn Mansur Al-Mahdi. After his death, the Thawri Madhhab was taken up by his students, including notably Yahya al-Qattan. However, his school did not survive, but his jurisprudential thought and especially hadith transmission are highly regarded in Islam, and have influenced all the major schools.