Li Dan or Lidan may refer to:
People Laozi ( 6th century BC), philosopher and founder of Taoism, one of his posthumous names being Li Dan An Indian Brahmin who died in Xi'an in 564 CE, known for the Tomb of Li Dan Emperor Ruizong of Tang (662–716), 2-time Tang emperor, known as Li Dan from 678 to 690 Li Siyuan (867–933), Later Tang emperor, known as Li Dan from 927 to 933 Li Dan (magnate) (died 1625), Chinese merchant and political figure Li Dan (sport shooter) (born 1962), Chinese sport shooter Li Dan (activist) (born 1978), Chinese HIV/AIDS activist Li Dan (speed skater) (born 1986), female Chinese speed skater (Olympian 2014) Li Dan (speed skater) (born 1994), female Chinese speed skater (Olympian 2018) Li Dan (gymnast) (born 1988), female Chinese trampoline gymnast Li Dan (runner) (born 1995), Chinese long-distance runner Li Tan (died 757), Tang prince Li Dan (stand-up comedian) (born 1989)
Places Lidan River, a Swedish river Lidan, Li County (澧澹街道), a subdistrict in Li County, Hunan, China
See also Daniel Little, American philosopher and professor who publishes in China under his Chinese name "Li Dan"