See also: Appendix:Variations of "boi" English Proper noun BOI Initialism of Bank of India. Initialism of Bank of Ireland. (Philippines) Initialism of Bureau of Immigration. Noun BOI (plural BOIs) Initialism of basal osseointegrated implant. Initialism of bill of information. Anagrams Bio, IBO, IOB, Ibo, bio, bio-, bio., obiWikiwand - on Seamless Wikipedia browsing. On steroids.