Nicomachus the Comic Poet was an Athenian comic poet of the 3rd century BCE, active during the Hellenistic period. He is identified as a poet of Middle Comedy, though his later date also places him within the sphere of New Comedy. No specific biographical details survive.

His work is known only through fragments. The 10th-century Byzantine encyclopedia, the Suda, records two comedies: "The Centaur" and "Pandora." Both plays are lost, with only minimal lines preserved by later grammarians like Athenaeus.

Nicomachus exemplifies the many comic poets from this era whose works are now fragmentary. His inclusion in the Suda indicates a degree of later remembrance, but his historical significance is limited by the complete loss of his texts. The mythological titles of his comedies suggest themes more characteristic of Middle Comedy.