Purpose: This article explores the role and impact of Czech language mastery in the integration and retention of foreign academics in HEIs in the Czech Republic (Czechia). Czech higher education institutions (HEIs) aspire to attract the best talents to the workplace. The well-being of foreign experts in local workplaces is often researched without expounding the impact of local language mastery. HEIs in Czechia, like other universities in the European Union (EU), have strategic needs for foreign talents in tertiary education, however, various barriers persist in attracting and retaining foreign academics in Czechia.
 Design/Method/Approach: Based upon the theories of Global Talent Management, Internationalization, and Social Ecology, this study conducted quantitative research and collected primary data from 211 foreign academics living and working in HEIs in Czechia. The study evaluated the dimensions of the well-being of foreign academics with their Czech language mastery. For higher validity, the analyses were supplemented with qualitative research (research triangulation) - a qualitative analysis of open answers to supplementary questions, in which respondents got an opportunity to express their feelings and opinions, was performed.
 Findings: The result shows that although a multicultural environment exists in HEIs in Czechia, which allows for communication in English, the need to understand the local language i.e. the Czech language, for work orientation, administrative procedures and integration of a foreign employee into the local community in the medium and long-term are still pertinent. The Czech language is one of the biggest obstacles while integrating into the local community, and it takes foreigners at least five years to learn it for everyday interaction.
 Theoretical Implications: This study contributes to the extension of Global Talent Management theory by extending the dimension of local language mastery as an important driver for employee integration and retention into a local workplace and community for sustainable employment.
 Practical Implications: The study found that foreign academics can improve Czech language proficiency and feel better integrated with local communities after five years in Czechia. HEIs could play a proactive role in integrating and retaining foreign talents by assisting with local language mastery.
 Originality/Value: This study highlights the importance of local language mastery in regional HEIs of the EU, whose retention of foreign talents is directly affected by the expatriates’ ability to master the local language.
 Research Limitations/Future Research: The research lacked sufficient information on the total number of foreign academics currently residing in Czechia. However, 211 foreign academics participated in this study. Future studies could expand the study by surveying foreign experts in other EU countries as well as including other dimensions besides local language mastery.
 Paper Type: Empirical
 JEL Classification: F22, I23, J24, J49