Mai Chia-je (Chinese: 買嘉瑞; pinyin: Mǎi Jiāruì; 25 February 1987 – 30 September 2020) was a Taiwanese baseball player who played for Brother Elephants of the Chinese Professional Baseball League. He was a pitcher and became the team's closer in the middle of the 2008 season. His career ended in 2009, following an investigation into . He died in a traffic collision on 30 September 2020. Mai's older brother was also a baseball player.