Konklevu (kutoka Kilatini "cum clave", yaani "kwa ufunguo", kupitia Kiingereza "conclave") ni mkutano maalumu ya makardinali wote wenye umri chini ya miaka 80 unaofanyika ili kumchagua askofu wa Roma, maarufu kama Papa wa Kanisa Katoliki. Lengo la kujifungia ndani tangu karne za kati ni kuzuia makardinali wasiingiliwe na watu wa nje, hasa watawala, ambao wanaweza kuwa na malengo tofauti na yale ya kiroho. Kwa sasa kuna taratibu nyingi zilizopangwa kinaganaga, ambazo mojawapo ni kwamba wapigakura wasizidi 120. Chumley, Cheryl K.. "What Do American Catholics Want in the Next Pope?", 12 March 2013. Retrieved on 15 March 2013. Archived from the original on 2017-07-07.  Pius X (25 December 1904). "Vacante Sede Apostolica". Apostolic constitution. Pii X Pontificis Maximi Acta. 3. (1908) pp. 239–288. Pius XI (1 March 1922). "Cum Proxime". Motu proprio. AAS. 14. (1922) pp. 145–146. Pius XI (25 March 1935). "Quae Divinitus". Apostolic constitution. AAS. 27 (1935) pp. 97–113. Paul VI (15 August 1967).