Han Chengkai (Chinese: 韩呈恺, born 29 January 1998) is a Chinese badminton player. He won the boys' doubles title at the 2016 Asian and World Junior Championships. Han also part of the Chinese team that won the 2019 Tong Yun Kai and Sudirman Cups. Together with his partner Zhou Haodong, he was awarded as the 2018 Most Promising Player of the Year by the BWF. He announced his retirement at the age of 23 after competed at the National Games on 13 September 2021.