Kho Sin-Khie (Chinese: ???; pinyin: Xu Chengji, Mandarin pronunciation: [xu t??????t?i??]; September 2, 1912 – January 31, 1947) was an Indonesian-born tennis player who represented the Republic of China in the Davis Cup.
He was from the Peranakan Chinese ethnic group.
He was the first Chinese player ever to win a major international tournament.
He won twice the British Hard Court Championships and the Surrey Grass Court Championships on one occasion.
He was a Swiss, Italian and Swedish champion as well.