Blue people

Blue people may refer to:
 * Methemoglobinemia, a disorder that can turn skin blue
 * the Blue Fugates, an Appalachian family with congenital methemoglobinemia
 * Cyanosis, a general medical condition that can turn skin blue
 * Blue baby syndrome, cyanosis in babies
 * A name for the Tuareg people, from their traditional clothing
 * A term in the United States to refer members of the Democratic Party (United States)
 * People with argyria, a condition that turns the skin blue
 * the Blue Man Group, a performing group that performs in blue makeup

Religion

 * Hindu deities such as Vishnu and Krishna are often depicted as having blue skin

In fiction

 * The Smurfs, small blue humanoid creatures from the cartoon and comic series of the same name
 * The Na'vi, a fictional species that live on the planet Pandora in the 2009 film Avatar
 * Doctor Manhattan, a character from the comic book series Watchmen and related media