Coach Chang Tai-shan (Chinese: 張泰山; pinyin: Zhāng Tàishān; Amis name Ati Masaw; born 31 October 1976 in Taitung, Taiwan), is a Taiwanese former professional baseball player and current coach.

He originally drafted by the Wei Chuan Dragons in 1996, he has played for the Sinon Bulls and Uni-President Lions of the Chinese Professional Baseball League.

A well-known slugger, Chang has been a frequent member of the Chinese Taipei national baseball team since 1998 and holds the record of hitting the most home runs in CPBL history with 289.

[2] His contract with the Lions expired after the 2015 CPBL season [zh] and he signed with the Tokushima Indigo Socks of the independent Shikoku Island League in Japan for 2016.

[3] Chang signed on to play in the Australian Baseball League for the 2017-18 season with the Adelaide Bite.