Philemon the Younger was a Hellenistic comic playwright active during the reign of Ptolemy II Philadelphus. He is distinguished from the major New Comedy poet Philemon by his epithet and is identified as that poet's son. This connection places him within the theatrical circles of Athens and possibly Alexandria.

The Suda credits him with two comedies: Homoia and Paidion. Both works are lost, and no fragments survive, but their titles suggest themes of family and situation typical of New Comedy. His significance lies primarily in his genealogical link to a principal figure of New Comedy, illustrating the continuation of the dramatic tradition within a family. His recorded existence in ancient sources helps map the comic landscape, though the complete loss of his work prevents assessment of his individual contribution.