古丽∙萨依(Külli Saia)，现北京外国语大学爱沙尼亚语专家，1985年毕业于爱沙尼亚塔尔图大学，有着非常丰富的语言教学经验，曾在塔尔图大学、华沙大学、北京第二外国语学院等多所大学任教。

Külli Saia joined BFSU in September 2020 as a Lecturer in Estonian Language and Culture having previously held lecturership at BISU (2017-2020). She received her MA from Tartu University, Estonia 1985.

She has  20 years of experience in teaching Estonian (Language and Literature) in high school setting (Tartu Tamme High School, Estonia) and Estonian as a foreign language at university level (Tartu University, Warsaw University, Tallinn University Summer School, Beijing International Studies University).

Her interests include second language acquisition, learning strategies, styles and techniques; language learning versus language use, intercultural perspectives on language teaching.

Külli Saia is a member of the International Association for Research in L1 Education (ARLE) since 2017.