Callimachus of Cyrene was a Hellenistic poet and scholar active at the Library of Alexandria during the reigns of Ptolemy II and Ptolemy III. While his exact official position is uncertain, he was a central figure in the intellectual life of the Museum. He engaged in notable literary rivalries, most famously with his former pupil Apollonius of Rhodes, debating the merits of short, polished poetry versus lengthy epic works.

His prolific output, much of which survives only in fragments, includes the elegiac Aetia, which explains mythical origins; six literary Hymns; the Iambi; and the epyllion Hecale. He also composed over sixty polished Epigrams and produced the monumental prose Pinakes, a critical catalog of the Library's holdings that established the foundations of bibliography.

Callimachus's aesthetic preference for learned, refined, and meticulously crafted composition profoundly influenced later Hellenistic and Roman poetry, including the works of Catullus and Ovid. His dual legacy as an innovative poet and a systematizing scholar epitomizes the Alexandrian ideal of learning.