John Beke, 1st Baron Beke (d.1303/4) of Eresby in the parish of Spilsby, Lincolnshire, was a baron.
He was the eldest son and heir of Walter II Beke, of Eresby, by his wife Eve de Grey, a niece of Walter de Gray (d.1255), Archbishop of York and Lord Chancellor. Walter II was a son of Henry Beke, "weak of understanding", who nevertheless "found a well born and richly dowered bride", Alice de Multon, sister of Thomas de Multon. Henry Beke was a son of Walter I Beke (fl.12th.c), a prominent Anglo-Flemish landholder, by his wife Agnes FitzPinco, daughter and heiress of Hugh FitzPinco, lord of the manor of Eresby.