For the town of this name, see Acron, Florida.

Helenius Acron (or Acro) was a commentator of the 2nd century.

He is known to have written on Terence (Adelphi and Eunuchus at least) and Horace, but these commentaries are now lost. There is some evidence for a commentary on Persius.

Scholia attributed to Acron appear in manuscripts of Horace, and were published in two volumes by O. Keller 1902-04; there are three recensions known, the earliest dating to the 5th century. The attribution to Acron, however, is not found before the 15th century, and is doubtful.

Fragments of Acron's writing may also appear in Pomponius Porphyrion.