This article examines the feasibility of enforcing Singapore money judgments in Cambodia, focusing on the “guarantee of reciprocity” – an ambiguous yet critical condition. It is ambiguous because Cambodian courts have not yet interpreted it. It is critical because it is perceived as the main obstacle to enforcing foreign judgments. Without a treaty-based mutual enforcement mechanism between Cambodia and Singapore, it is unclear whether a Singapore money judgment could be enforced in Cambodia or if a judgment creditor’s application would be dismissed in any event citing lack of reciprocity. Following an analysis of the laws of Cambodia, Singapore, and Japan, the article concludes that there is no legal obstacle before the Cambodian courts to enforce a Singapore money judgment. The flexible interpretation of the guarantee of reciprocity outlined in this article would enhance access to justice, eliminate a trade barrier, and make the investment environment more attractive in Cambodia.