Kristal Tin Yui Nei (Chinese: 田蕊妮; pinyin: Tián Ruǐ Nī, born (Chinese: 田明慧; pinyin: Tián Mínghuì); 28 September 1977) is a Hong Kong singer and a former TVB actress.

[2] Tin's career began with a first place in a singing contest in 1993.

In 2003, Tin decided to end her decade long relationship with ATV.

Her time with the network saw her winning two Hong Kong Film Awards for Best Actress.

[3] In 2024, Tin was diagnosed with early-stage lung adenocarcinoma and underwent surgery to remove the cancer in Taiwan.