Flavius Anastasius Paulus Probus Sabinianus Pompeius Anastasius (floruit 517) was a politician of the Eastern Roman Empire.
Anastasius was the son of Sabinianus, consul in 505, and of a niece of emperor Anastasius I. According to another possible reconstruction, he might be a great-nephew of Anastasius and a brother of Anastasius Paulus Probus Moschianus Probus Magnus, consul in 518.
He held the consulship for the year 517. One of his consular diptychs is preserved at the Bibliothèque Nationale de France. According to the inscription (CIL V, 8120 CIL XIII, 10032) he held the honorary title of comes domesticorum equitum.
He married Theodora, born c. 515, natural daughter of Empress Theodora, although Emperor Justinian I apparently treated her and her son Athanasius as fully legitimate, and had: