Li Dan

Li Dan or Lidan may refer to:

People

 * Laozi (fl. 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

Places

 * Lidan River, a Swedish river
 * Lidan, Li County (澧澹街道), a subdistrict in Li County, Hunan, China