Tse Tsan-tai (Chinese: ??? or ???; pinyin: Xiè Zà ntà i; Sidney Lau: Je6 Juen2 Taai3; 16 May 1872 – 4 April 1938), courtesy name Sing-on (??), art-named Hong-yu (??), was an Australian Chinese revolutionary, active during the late Qing Dynasty.
Tse had an interest in designing airships but none were ever constructed.
His book The Chinese Republic: Secret History of the Revolution (????????), published in 1924 by the South China Morning Post, of which he was co-founder, is an important source of studies on the anti-Qing revolution.