This research study aimed at exploring the relationship between vocabulary learning strategies and vocabulary size of 125 undergraduate English Language Teaching students at Eastern Mediterranean University. This research study was a correlational survey study of descriptive nature. The major findings of this study were as follows. First, the findings indicated that most of the ELT students adequately operated the psycholinguistic strategies, whereas somewhat adequately the metacognitive strategies. Next, the ELT students reportedly had a somewhat average vocabulary size to cope with advanced studies at the university level. Finally, this study found no relationship between the psycholinguistic strategy and the vocabulary size of the participants, and the relationships between the metacognitive strategy and the vocabulary size, as well as the vocabulary learning strategy questionnaire and the vocabulary size of the participants were negligible. The findings also revealed that students did not operate certain strategies, rather a variety of strategies.