Makubaliano (kutoka kitenzi "kukubali"; kwa Kiingereza: convention) ni muafaka unaoafikiwa na pande mbili au zaidi kwa maridhiano fulani, yanaweza yakawa ni makubaliano ya kisheria ama yasiwe ya kisheria. Rescorla, Michael (2007) Convention, Stanford Encyclopedia of Philosophy. Law-Ref.org, an index of important international conventions.