thumb|ʿAjāʾib al-makhlūqāt, 16th-century manuscript
Zakariyya' al-Qazwini ( , ), also known as Qazvini (), (born in Qazvin, Iran, and died 1283), was a professor, jurist, cosmographer and geographer.
Qazwini’s most famous work is his cosmography titled ʿAjāʾib al-makhlūqāt wa-gharāʾib al-mawjūdāt or Wonders of the Creation and Unique [phenomena] of the Existence. This treatise, frequently illustrated, was immensely popular and has been preserved today in many copies. Al-Qazwini was also well known for his geographical dictionary Āthār al-bilād wa-akhbār al-ʿibād or Monuments of the Lands and Historical Traditions about Their Peoples. Both of these treatises reflect extensive knowledge in a wide range of disciplines. In 1220, at the age of 16 or 17, Qazwini fled to Mosul after an early Mongol campaign led by Genghis Khan reached Qazvin.
Qazwini published most of his work during this period, including The Wonders of Creation and The Monuments of the Lands. Wonders of Creation, his most famous work, is a seminal work in cosmography, while Monuments of the Lands is a geographical dictionary.