Valentin Eck (Ecchius) (c. 1494 in Lindau (Bodensee) – before 28 September 1556 in Bardejov) was a Swiss traveling humanists, Neo-Latin poet, and scholar.
In 1517, Eck moved to Hungary, taking the position of the rector of the school in Bardejov.
He counted Rudolf Agricola Junior, Johannes Dantiscus, Joannis Vislicensis, Justus Ludwik Decjusz, and Leonard Cox among his friends.
Eck's most important work, De versificandi arte opusculum, was a manual for writing poetry; it was first published in 1515 and later reissued in 1521 and 1539.
Eck was also the author of numerous poems and prose works, many of a laudatory nature, such as the panegyric celebrating Sigismund the Old's victory at the Battle of Orsha in 1514.