Phytochemical analysis of an EtOAc extract of the stems of Artocarpus rigidaled to the identification of seven new prenylated 4-chromenones, artocarmins G–M (1–7), and nine known compounds (8–17). Their structures were identified based on physical data analysis. In the tyrosinase inhibitory activity test, norartocarpetin (8) displayed the strongest effect, with an IC50value of 0.023 μM.