Asukai Masatsune (飛鳥井雅経?, born 1170, died 1221) was a Japanese waka poet of the early Kamakura period. He was also an accomplished kemari player. and one of his poems was included in the Ogura Hyakunin Isshu.
He was a son of Nanba Yoritsune (難波頼経?, ), and the ancestor of the Asukai clan, who were known for their skill at both poetic composition and kemari. Being of Fujiwara stock, he was also known as Fujiwara no Masatsune (藤原雅経?). Among his grandchildren was the poet Masaari. He made a private collection, the Asukai-shū, which was posthumously edited by his grandson in 1292. Twenty-two of his poems were included in the Shin Kokin Wakashū, and a total of 134 in the imperial anthologies.
Masatsune served three emperors, Go-Toba, Tsuchimikado and Juntoku, in addition to working under the Kamakura shogunate.