Abiyun al-Bitriq (, , fl. 630 CE) was a mathematician and a maker of astronomical instruments at the beginnings of Islam. He is mentioned in al-Qifti's Tarikh al-Hukama as Anibun (, ), and al-Nadim's Fihrist. His name is not certain, and it was probably Apion () or Apion Patrikios (). He wrote a book, now lost, titled "On Operating the Planispherical Astrolabe" (, )