Fujiwara no Fuyutsugu (藤原冬嗣, 775 – August 30, 826) was a Japanese noble, statesman, general, and poet of the early Heian period.

Upon Emperor Heizei's ascension in 806, Fuyutsugu was promoted to ju go-i no ge (従五位下) and senior official of the Crown Prince's Quarters (春宮大進, tōgū-daishin).

In 809, Emperor Saga assumed the throne, and Fuyutsugu was promoted at a stroke to ju shi-i no ge (従四位下) and division chief (督) in the Imperial Guard.

In the court of Saga's successor Emperor Junna, Kanmu's son, Otsugu was promoted to udaijin in 825, pushing Fuyutsugu to sadaijin.

Fuyutsugu died on August 30, 826, at the age of 52, with the ranks of shō ni-i (正二位), sadaijin, and general of the imperial guard.