This study aimed to study cognitive learning styles of EFL students, compare language learning styles among students categorized by their background, and investigate the relationship between English background knowledge and language learning styles. The samples were 210 undergraduate students enrolled in Fundamental English course at Bangkok University. The instrument in this study was a questionnaire. Results indicated that the overall language learning style was at a moderate level. There were significant differences at 0.05 level found in students' language learning styles as classified by gender, but no statistically significant differences in terms of field of study. In addition, there was a positive relationship between English background knowledge and language learning styles at 0.05 level. (Contains 6 tables.)