Purpose: This study aims to explore the intersection of Electronic Theses and Dissertations (ETDs) with Open Science in the realm of 21st-century library science. The purpose is to uncover the evolving landscape of ETDs and their implications within the context of Open Science. The research problem revolves around understanding how ETDs can benefit from Open Science principles, contributing to effective information management and knowledge dissemination.Methods: To achieve this, a comprehensive analysis of the Open Access Theses and Dissertations (OATD) repository was conducted. A total of 2,683 ETDs from 2000 to 2023 were analyzed, revealing key trends and patterns. The research investigated ETD contributions across years, countries, universities, departments, and degree types.Findings: The study's findings indicate that the years 2004-2008 were highly productive (32.91%), with Sweden being the primary contributor (38.84%). Notably, the University of Borås emerged as the top contributor among universities (21.36%), and the "Swedish School of Library and Information Science" stood out as the leading department (21.32%). Doctoral ETDs held the majority (23.85%), with PhD degrees predominating (20.16%). In terms of language, 38.02% of these ETDs were in "Swedish".Implication: The study's implications are significant. It highlights ETDs' role in disseminating knowledge and fostering transparent, collaborative scholarly ecosystems. By aligning with Open Science, ETDs can boost research visibility. The study proposes strategies to enhance ETD discoverability and use, while addressing copyright and data management challenges. Additionally, it offers insights for shaping ETDs' future within the Open Science framework.