This study's objective is to determine the relationship between the popularity of the foreign language and the study efficiency based on the OKM 2016 database. In our results you can see that the popularity of foreign languages is outstanding compared to other subjects. Concerning the gender and study average it is apparent that among girls and those with higher study average the subject is more popular than among boys and those with lower study average. The results of regression show that girls, those who live in town, who attend high school, who learn in larger schools, who do not attend religious school, who are descendants of highly educated parents and those whose parents' status is active in the labour market have positive opinion. Beyond the socio-demographic variables the popularity of the foreign language as a subject has an effect on the study average. The relevance of this study can be defined in the future research of unsuccessful language learning.