This article details the findings of a study conducted from October 2022 to December 2023 on the ethnocultural enclaves of Russophone Koreans in South Korea. The research delves into the origins of the term “Koryŏin Maŭl” and proposes a refined definition. It identifies key characteristics shared by these enclaves and introduces a preliminary classification scheme. Distinguished by a strong ethnic presence and a somewhat insular community formed around a common language (Russian) and shared cultural practices, the “Koryŏin Maŭl” can be defined as ethnocultural enclaves. These areas are self-determined and universally recognized among their residents.Through my research, I have concluded that the Koryŏin Maŭls in South Korea share a number of common characteristics. They all have distinct boundaries, formed by both terrain features and patterns of residential development. These neighborhoods also house a significant number of ethnic businesses, whose success largely hinges on the customer base formed within the ethnic enclave itself.