Happy Lo Sin Yan (Chinese: 盧善恩; Jyutping: lou4 sin6 jan1; born Cheng Sin Yan, 25 February 2003) is a badminton player from Hong Kong.
She was a member of the Hong Kong team that participated at the 2022 Asian Games, where she lost her opening match to Japanese world number 10 and defending champion, Aya Ohori.
[3] In the team event, she lost to Taiwanese player Tai Tzu-ying as part of a 3–0 defeat for Hong Kong.
[4] In December 2023, she defeated top seed Hsu Wen-chi on her way to the final at the 2023 Odisha Masters.
[5][6] She competed for Hong Kong that reached the quarter-finals at the 2024 Badminton Asia Team Championships in Malaysia.