Stephen Lee Bun-sang (born 10 November 1956, in Hong Kong; in Chinese: 李斌生; pinyin: Lǐ bīnshēng) is a Hongkonger Catholic prelate who has served as Bishop of Macau since 2016.

On 11 July 2014, Pope Francis appointed Lee as one of the three Auxiliary Bishops of Hong Kong, alongside Michael Yeung and Joseph Ha.

He received his episcopal ordination on 30 August 2014 by Cardinal John Tong Hon, Bishop of Hong Kong.

On 16 January 2016, Pope Francis accepted the resignation from the Bishop of Macau, José Lai Hung Seng.

He was officially installed on 23 January 2016 during the Solemn Holy Mass for the 440th Anniversary of the Establishment of the Diocese of Macau.