Chen Kuan-yu (Chinese: 陳冠宇), born October 29, 1990 in New Taipei City, Taiwan, is a Taiwanese professional baseball pitcher for the Rakuten Monkeys of the Chinese Professional Baseball League (CPBL). He has previously played in Nippon Professional Baseball (NPB) for the Yokohama BayStars/Yokohama DeNA BayStars and Chiba Lotte Marines.