English instructors in Malaysian universities have varying perceptions towards code switching, a practice commonly used in English as a Second Language (ESL) classrooms. This research aims to discover how ESL lecturers in Malaysian universities practice code switching and how they perceive its usage. Employing a mixed-method approach involving online questionnaires and telephone interviews, the study collected responses from 56 lecturers in both public and private Malaysian universities. The findings of the study revealed that the instructors generally hold positive insights towards adopting code switching in the ESL classroom. They believe it to be relevant and necessary, especially considering the diverse contexts and situations encountered in language learning. The study also showed that the impact of code switching on ESL learning can be both advantageous and detrimental, depending on the specific situation in which it is employed. To conclude, this research suggests further investigation opportunities in this area.