Ya Hui (Chinese: 雅慧; pinyin: Yǎhuì; born Koh Yah Hwee; 18 May 1987) is a Singaporean actress and Mediacorp artiste. She began her acting career after winning the "Miss Telegenic" title at the Star Search competition in 2007. She won her first Star Award for Top 10 Most Popular Female Artistes — a popularity award voted by Singaporean audiences, at the annual Star Awards in 2014.

Ya Hui was born on 18 May 1987 in Singapore. She was educated at Manjusri Secondary School and Serangoon Junior College. She joined the Dance Team as her Co-Curricular Activities (CCA) from her primary school days to junior college, and was the prom queen during her college days.

Ya Hui was offered a contract with Mediacorp after the Star Search contest, a large-scale TV talent scouting competition in Singapore, in 2007. She was considered a popular contestant for that contest season. She was one of the runners-up and the winner of the Miss Telegenic title at the grand finals. Shortly after, Ya Hui was chosen as the face for the TVC of shampoo brand Silkpro. She also landed a supporting role in the long-running drama series, Love Blossoms II as Tao Wen Zhu, acting alongside seasoned actors Ivy Lee and Zheng Geping. Her versatile acting skills and rising popularity has earned her various roles in both English and Mandarin channel (Channel 8, U and 5) dramas such as Bountiful Blessings, Point of Entry, Served H.O.T (烧。卖) and Marry Me (我要嫁出去).

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