Fyodor Davydovich of Galich-Mersky

Fyodor Davydovich was prince of Galich-Mersky, a son of Davyd Konstantinovich of Galich-Dmitrov by his marriage to a daughter of Prince Fyodor Rostislavich the Black of Yaroslavl. After his uncle Vasily's death, the family lands may have passed to his nephews and been divided: Fyodor received Galich-Mersky and Boris took Dmitrov.

Nothing is recorded of his rule, though genealogies claim he sold half of Galich to Ivan Kalita of Moscow. A prince Fyodor whose death the Nikon Chronicle records in 1335 has been identified as him. He left a single son, Ivan.