Suwijak Piyanopharoj (สุวิจักรขณ์ ปิยะนพโรจน์; born August 18, 2005), nicknamed Keen (คีน), is a Thai actor and singer under GMMTV. He is currently attending the Faculty of Engineering at Chulalongkorn University. He is known for competing on GMMTV's reality survival show "Project Alpha". He made his acting debut in 2023 with a supporting role in the series "My Tempo" (น้อง พี่ ดนตรี+เพื่อน).