Majd ad-Dīn Usāma ibn Murshid ibn ʿAlī ibn Munqidh al-Kināni al-Kalbi (also Usamah, Ousama, etc.; Arabic: أسامة بن منقذ) (July 4, 1095 – November 17, 1188) was a medieval Muslim poet, author, faris (professional warrior), and diplomat from the Banu Munqidh dynasty of Shaizar in northern Syria. His life coincided with the rise of several medieval Muslim dynasties, as well as the arrival of the First Crusade and the establishment of the crusader states.

He was the nephew of the emir of Shaizar and probably expected to rule Shaizar himself, but he was exiled in 1131 and spent the rest of his life serving other leaders. He was a courtier to the Burids, Zengids, and Ayyubids in Damascus, serving the famous Zengi, Nur ad-Din, and Saladin over a period of almost fifty years. He also served the Fatimid court in Cairo, as well as the Artuqids in Hisn Kayfa. He often meddled in the politics of the courts in which he served, and he was exiled from both Damascus and Cairo.

During and immediately after his life he was most famous as a poet and adib (a "man of letters"). He wrote many poetry anthologies, such as the Kitab al-'Asa ("Book of the Staff"), Lubab al-Adab ("Kernels of Refinement"), and al-Manazil wa'l-Diyar ("Dwellings and Abodes"), and collections of his own original poetry. For modern readers, however, he is most well known for his Kitab al-I'tibar ("Book of Learning by Example" or "Book of Contemplation"), which contains lengthy descriptions of the crusaders, whom he interacted with on many occasions, and some of whom he considered friends, although he generally saw them as ignorant foreigners.

Most of his family was killed in an earthquake at Shaizar in 1157. He died in Damascus in 1188, at the age of 93, a remarkably advanced age for the time. (Read more. . .)