《禁书目录》（拉丁语：Index librorum prohibitorum）是一份禁书目录，收录了曾被罗马教廷判定为具「危险性」或内容有害于天主教徒的信仰和道德的书籍。凡在《禁书目录》之列的书籍或著作，都严禁印刷、进口和出售。《禁书目录》是审查制度的衍生物，用于防止信徒阅读到被天主教会认为不道德、含有错误神学观点和导致腐败行为的书籍。天主教作家亦可能通过此捍卫自己的著作和修正著作。《禁书目录》于1559年首度发表，共32修订版，1966年6月14日被教宗保禄六世废止。

The Index Librorum Prohibitorum (English: List of Prohibited Books) was a list of publications deemed heretical, anti-clerical or lascivious, and therefore banned by the Catholic Church. The Church has earlier examples of forming a formal prohibition of works including the Muratorian Canon around AD 170, which set to establish what was acceptable to have in the New Testament and what was heretical. The 9th century also witnessed the creation of what is considered to be the first index called the Decretem Glasianum but was never officially authorized. Much later, a first version (the Pauline Index) was promulgated by Pope Paul IV in 1559, which Paul F. Grendler believed marked "the turning-point for the freedom of enquiry in the Catholic world", and which lasted less than a year, being then replaced by what was called the Tridentine Index (because it was authorized at the Council of Trent), which relaxed aspects of the Pauline Index that had been criticized and had prevented its acceptance.