The Taiwan Comprehensive University System (台灣綜合大學系統), informally called Taiwan T4 Alliance is a research-led university alliance in Taiwan. Its members are: National Cheng Kung University (NCKU) in Tainan. National Sun Yat-sen University (NSYSU) in Kaohsiung. National Chung Hsing University (NCHU) in Taichung. National Chung Cheng University (CCU) in Chiayi County.