Namesakes
Cai Lun
(m) 50-121 
Notable Scientists and Inventors
Cai Huijue
(f) 1980-
Olympic Medalists 1996 swimming - 4x100 m medley relay (bronze)
Cai Yun
(m) 1980-
Olympic Medalists 2008; 2012 badminton doubles (silver/gold)
Cai Zelin
(m) 1991-
Olympic Medalists 2016 20 km walk (silver)