Rav Papi should not be confused with Rav Pappa.
Rav Papi[1] [2] (or Rav Pappai; Hebrew: רב פפי) was a Babylonian rabbi, of the fifth generation of amoraim.
Rav Papi was the son-in-law of Rabbi Isaac Nappaha,[3] while his main rabbi was Rava, and he repeats many teachings in Rava's name.[4] [5] He was a colleague and an opponent of Rav Papa and Rav Huna b. Joshua. His students include Rav Ashi and Ravina I.