Even though I have completed IELTS, do I have to do OET again for New Zealand?

No, if you have already completed IELTS and it meets the required score for your New Zealand student visa or university admission, you do not need to take the OET (Occupational English Test) again. IELTS is widely accepted as proof of English proficiency for student visas and most academic programs in New Zealand.

You would only need OET if you are applying for medical registration or a healthcare license, and the Medical Council specifically requires it. For student visa and university admission, your valid IELTS score is sufficient.