This research describes the influences of international law to domestic regulation in Indonesia’s marine plastic pollution. Although protection of the marine environment comes in various forms, all such methods employed ultimately rely on legal instruments as a backbone. However, the question of whether such legal instruments are sufficient to prevent marine pollution in the domestic level remains unanswered. This research seeks to answer: To what extent do the international legal instruments on marine protection influence domestic regulations on marine plastic pollution? This research provides brief outlines of current international laws and Indonesian regulations, followed by a closer look on the regulations of two cities: Jakarta and Surabaya. Then, it analyses the influence of the international law to the domestic regulation on marine plastic pollution in Indonesia. Results of this research depict the imbalance of international law influence to domestic regulations
on marine plastic pollution issues in Indonesia.