I Against I is an alternative rock album by Bad Brains, released in 1986 (see 1986 in music) as SST Records number 65. The highest selling album in the band's catalogue, I Against I is a critically acclaimed album of American punk rock mixed with funk, soul, and heavy metal. Oddly enough, it is the only Bad Brains album that does not include reggae music.

The title I Against I presumably refers to a common Rastafarian phrase, I and I, which is used in place of the first-person plural (e.g. we) in order to signify the union of the speaker, audience, and Jah (God) in love and peace.