Koo Sze-yiu

Koo Sze-yiu
古思堯
Koo in 2022
Born79–80
NationalityChina (Hong Kong)
China (Macau)
OccupationActivist
Years active1960s–present
Known forMultiple convictions over protests
Political partyMacao Federation of Trade Unions (until 1980s)
MovementBaodiao movement
Maoism (until 1989)

Koo Sze-yiu (Chinese: 古思堯; born 1945/1946), also known by his nickname "Long Beard" (長鬚), is a Hong Kong activist, known for being jailed for 12 times over his protests. A former Maoist, Koo became anti-communist after the 1989 Tiananmen Square protests and massacre.