索非亚大学“圣克拉门特奥尔希斯基”是保加利亚历史最悠久的高等学府，成立于1888年，前身为保加利亚公国高等学校，1905年正式定名并以中世纪保加利亚学者圣克拉门特·奥尔希斯基命名。作为巴尔干地区重要的学术中心，该校拥有16个学院，涵盖人文社科、自然科学、医学、工程技术等多个领域，培养了大量保加利亚及欧洲的优秀人才。学校图书馆藏书超过251万册，是保加利亚最大的学术图书馆之一，馆藏包括珍贵古籍和现代电子资源，为教学与科研提供坚实支持。

Sofia University "St. Kliment Ohridski" is the oldest higher education institution in Bulgaria, founded in 1888 as the Higher School of the Principality of Bulgaria. It was officially named and dedicated to the medieval Bulgarian scholar St. Kliment Ohridski in 1905. As a key academic center in the Balkans, the university comprises 16 faculties covering humanities, social sciences, natural sciences, medicine, engineering, and technology, nurturing numerous outstanding talents for Bulgaria and Europe. Its library, with over 2.51 million volumes, stands as one of Bulgaria's largest academic libraries, housing rare ancient books and modern electronic resources to support teaching and research.

在学术排名方面，该校2025年QS世界大学排名位列661-670区间，学科优势集中在数学、物理学、计算机科学等领域，其中物理学与天文学专业2023年QS学科排名位列第530位。学校注重国际合作，与欧洲多所高校建立联合研究项目，并为国际学生提供英语授课课程，本科及研究生申请需满足托福70分或雅思6.5分以上的语言要求。索非亚市生活成本较低，每月约300-500欧元，加上相对合理的学费，使其成为性价比突出的留学选择。

In terms of academic rankings, the university ranked in the 661-670 range in the 2025 QS World University Rankings, with strengths in mathematics, physics, and computer science. Its Physics and Astronomy program ranked 530th in the 2023 QS Subject Rankings. The university emphasizes international collaboration, with joint research projects with numerous European institutions, and offers English-taught programs for international students. Undergraduate and graduate applicants are required to meet language proficiency standards of at least TOEFL 70 or IELTS 6.5. With a low cost of living in Sofia (approximately €300-500 per month) and reasonable tuition fees, it presents a cost-effective study option.