Yulei may refer to:
Marilynessa yulei, snail in the family Camaenidae Mylothris yulei, butterfly in the family Pieridae Yulei Township in Wen County, Gansu, China Yulei (deity) or Yulü, Chinese guardian deity Yu Lei (politician), a Chinese politician and public security official.
See also Zhuzi yulei, Chinese text containing discussions between Zhu Xi and his disciples