This article explores the issue of whether the strength of a country’s national identity can determine extensive use of English instead of Croatian equivalents among Croatian students of kinesiology, both in their professional (i.e. expressions related to sport) and everyday language usage. The study addresses the following issues: a) what does having stronger national identity mean; b) is there correlation between strength of national identity and gender differences in knowledge and preferences in using Croatian equivalents over English terms; c) in which context (everyday or sports) do students use more Croatian terms than English ones? A questionnaire was given to a sample of 100 students from the Faculty of Kinesiology, University of Split, Croatia. The Spearman Rank Order Correlations were used in establishing a correlation between national identity and the usage of Croatian equivalents, while the Mann-Whitney U Test was used in testing gender differences. To conclude, the results show a negative correlation between strength of national identity and knowledge of Croatian equivalents (in 51% of cases, in sports terminology, students do not know the Croatian word, and 78% prefer using English sport terms). Furthermore, gender differences were only found on the scale regarding English grades in high school (women had better grades than men).