This text proposes to approach the use of the word antichrist in the Johannine letters, its place in the eschatology of the Johannine writings and the similarities of the attestations in which this word occurs with other New Testament characters: the pseudo-christ mentioned in a direct discourse of Jesus, present in the Gospel according to Mark and the Gospel according to Matthew, the pseudo-prophet in the Apocalypse and in the Second Letter of Peter, the son of iniquity in the Second Letter to the Thessalonians. The methodology used was the survey of the attestations of the keywords in the concordance of the Greek New Testament, the consultation in the dictionaries and the dialogue with exegetes that dealt with the diverse themes that intersect in this research. As a result, it is proposes the possibility of distinguishing the use of the word antichrist in the singular and the plural in the Johannine letters: in the singular referring to an extra-ecclesial fi gure, in the plural referring to a reality that has its origin in the intra-ecclesial context.