Martianus Minneus Felix Capella (fl. c. 410–420) was a jurist, polymath and Latin prose writer of late antiquity, one of the earliest developers of the system of the seven liberal arts that structured early medieval education. He was a native of Madaura.

His single encyclopedic work, De nuptiis Philologiae et Mercurii ("On the Marriage of Philology and Mercury"), also called De septem disciplinis ("On the seven disciplines"), is an elaborate didactic allegory written in a mixture of prose and elaborately allusive verse.

Martianus often presents philosophical views based on Neoplatonism, the Platonic school of philosophy pioneered by Plotinus and his followers.

Like his near-contemporary Macrobius, who also produced a major work on classical Roman religion, Martianus never directly identifies his own religious affiliation. Much of his work occurs in the form of dialogue, and the views of the interlocutors may not represent the author's own.

According to Cassiodorus, Martianus was a native of Madaura—which had been the native city of Apuleius—in the Roman province of Africa (now Souk Ahras, Algeria). He appears to have practiced as a jurist at Roman Carthage.

Martianus was active during the 5th century, writing after the sack of Rome by Alaric I in 410, which he mentions, but apparently before the conquest of North Africa by the Vandals in 429.

As early as the middle of the 6th century, Securus Memor Felix, a professor of rhetoric, received the text in Rome, for his personal subscription at the end of Book I (or Book II in many manuscripts) records that he was working "from most corrupt exemplars". Gerardus Vossius erroneously took this to mean that Martianus was himself active in the 6th century, giving rise to a long-standing misconception about Martianus's dating.

The lunar crater Capella is named after him.