Library-based metadata and knowledge organization standards, such as Resource Description and Access (RDA); Dewey Decimal Classification system (DDC); and Library of Congress Subject Headings (LCSH), are called “international” or “universal” as they are increasingly adopted by countries around the world. Yet, library knowledge organizations systems are created within given contexts representing the limited needs of specific communities in certain time periods. This article presents results from a cataloging study of Thai libraries. A focus group and interviews were used to gather data on Thai catalogers’ use and perception of cataloging standards in Thai libraries and how well they meet their needs.