The Indian Institute of Space Science and Technology, Thiruvananthapuram, offers admissions at the undergraduate, postgraduate, and doctoral levels. The candidates must meet IIST Thiruvananthapuram admission criteria to apply for the courses. IIST Trivandrum admissions are primarily done on entrance-basis. The B. Tech admissions at IIST Thiruvananthapuram are provided to the students based on JEE Advanced scores.

Students willing to get admissions for M. Tech at IIST Trivandrum need to clear GATE or JEST examination. Candidates can fill online application form for Ph. D admission at IIST Trivandrum and appear for entrance exam.