Khasta Qasim (Azerbaijani: Xəstə Qasım, Persian: خسته قاسم: 1684–1760) – was an Iranian Azerbaijani poet of Azerbaijani literature. Khasta Qasim was one of the best Azerbaijani-language poets; he was also a mystic, ashik, and philosopher in the era of Afsharid Iran (18th century), popularly known as Dada and Gasim.