Lin En-yu (Chinese: 林恩宇; pinyin: Lín Enyǔ; Wade–Giles: Lin2 En1 Yü3; born 25 March 1981) is a former Taiwanese professional baseball pitcher.

After serving on the Taiwanese national training team in 2003 and 2004, he was drafted by the Macoto Cobras of the Chinese Professional Baseball League (CPBL) in Taiwan in early 2005 and stayed with the team until the end of 2006.

He later played for Tohoku Rakuten Golden Eagles of the Nippon Professional Baseball in Japan starting 2007, under the introduction of former Cobras manager Kuo Tai-yuan and followed his teammate Lin Ying-chieh.

Lin throws a variety of different pitches and has a fastball speed up to 151 km/h (94 mph), and has been a frequent member of the national team.

This biographical article relating to a Taiwanese baseball pitcher is a stub.