Namesakes
Chinese Emperors:
28 emperors
Emperor Liu Bang 202-195 BC 
Emperor Liu Ying 195-188 BC
Emperor Liu Gong 188-184 BC
Emperor Liu Hong 184-180 BC
Emperor Liu Heng 180-157 BC
Emperor Liu Qi 157-141 BC
Emperor Liu Che 141-87 BC
Emperor Liu Fuling 87-74 BC
Emperor Liu Bingyi 74-49 BC
Emperor Liu Shi 49-33 BC
Emperor Liu Ao 33-7 BC
Emperor Liu Xin 7-1 BC
Emperor Liu Kan 1 BC-6
Emperor Liu Ying 6-9
Emperor Liu Xuan 23-25
Emperor Liu Xiu 25-57
Emperor Liu Yang 57-75
Emperor Liu Da 75-88
Emperor Liu Zhao 88-105
Emperor Liu Long 105-106
Emperor Liu Hu 106-125
Emperor Liu Bao 125-144
Emperor Liu Bing 144-145
Emperor Liu Zuan 145-146
Emperor Liu Zhi 146-168
Emperor Liu Hong 168-189
Emperor Liu Bian 189
Emperor Liu Xie 189-220
Nobel Prize Winners:
1 peace
(peace) Liu Xiaobo 2010
Notable Activists and Revolutionaries:
1 activist
(activist) Liu Xiaobo 1955-2017
Notable Actors and Entertainers:
3 actors
Lucy Liu 1968-
Simu Liu 1989-
Dallas Liu 2001-
Notable Athletes:
1 track
(track) Liu Xiang 1983-
Notable Musicians:
1 singer
Liu Huan 1963-
Olympic Medalists:
4 silver, 3 bronze, 3 gold, 2 bronze/silver, 1 silver/gold/bronze
(bronze/silver) Liu Qing 1984; 1992 basketball
(silver) Liu Jun 1992 basketball
(bronze) Liu Jianjun 1996 badminton mixed doubles
(silver) Liu Limin 1996 swimming - 100 m butterfly
(gold) Liu Xiang 2004 110 m hurdles
(silver) Liu Ming-huang 2004 archery - team
(gold) Liu Zige 2008 swimming - 200 m butterfly
(bronze) Liu Zhongqing 2010 freestyle skiing
(bronze) Liu Xiaobo 2012 taekwondo
(bronze/silver) Liu Ou 2008; 2012 synchronized swimming - duet; synchronized swimming - team
(silver/gold/bronze) Liu Hong 2012; 2016; 2020 20 km walk
(gold) Liu Shiying 2020 javelin throw
(silver) Liu Yuchen 2020 badminton doubles
Saints:
1 saint
Saint Peter Lieou (a.k.a. Liu) 1760-1834