Language learning strategies assist English as Second Language (ESL) students to enhance their learning abilities effectively. The study aimed at identifying language learning strategies used by ESL postgraduate students using Strategy Inventory for Language Learning (SILL).The target population was MA in English Literature/Linguistics and Master of Philosophy in English Literature/Linguistics students in Pakistan. A sample consisting of 300 ESL students was selected by using purposive sampling technique. A questionnaire consisting of language learning strategies developed by the researchers was used for gathering data. SPSS was used to analyze the data. The findings, based on the quantitative analysis of data, revealed that the ESL students use comprehension and meta-cognitive strategies as compared to other strategies. It was found that females used more language learning strategies as compared to their male counterparts. Moreover, high achievers were reported high strategy users, which means that more use of language strategies can result in high academic achievement of students. In view of this, the researchers suggested a productive means of language learning strategies to enhance their academic performance.