Hoshaiah Rabbah or Hoshayya Rabbah (also "Roba", "Berabbi", Hebrew: אושעיא בריבי) was Palestinian amora of the first amoraic generation (about 200 AD), compiler of baraitot explaining the Mishnah-Tosefta. He was closely associated with the successors of Rebbi, as was his father with Rebbi himself. Hoshaiah's father, Ḥama, lived in Sepphoris, the residence of Rebbi and the seat of the patriarchs.
Read more about Hoshaiah Rabbah: "Father of The Mishnah", His Haggadah, Relations With Origen, Jewish Encyclopedia Bibliography