The Catholic University of Korea (CUK) has specific undergraduate application requirements for international students that focus on academic eligibility, documentation, and language proficiency.

Applicants must generally be non Korean nationals (both the student and their parents) and must have completed or be expected to complete primary and secondary education (equivalent to high school) before admission.

The application process involves submitting an online application, followed by required documents such as academic transcripts, graduation certificates, identification documents (passport), and other supporting materials for evaluation.

In addition, students must demonstrate language proficiency, typically through Korean language ability (TOPIK level 3 or above) or other accepted criteria depending on the program, as many undergraduate courses are conducted in Korean.

The selection process may also include interviews or practical tests, after which successful applicants are announced, required to pay tuition, and then proceed with visa application procedures.