Imam Azzan bin Qais (Arabic: الإمام عزان بن قيس ) was the Imam of Oman between 1868 and 1870. He deposed his distant relative Sayyid Salim bin Thuwaini and ruled according to religious law. He also opposed the Saudi interference in the Buraimi Oasis and was eventually killed by Salim's uncle, Sayyid Turki bin Said in 1870.