Is Oni an onion? Yes. 10 votes anonymous-user-YP42f6 Answer Link Yes 1 vote anonymous-user-YP42f6 Answer Link anonymous-user-YP42f6 published on August 03, 2017 4 quizzes 31 stories 27 polls Follow Create Poll on Qfeast. It's just too easy! Star Poll (2) Comments (0) Posting comments has been disabled for this poll