Lists of unsolved problems

List of unsolved problems may refer to several notable conjectures or open problems in various academic fields:

Natural sciences, engineering and medicine

 * Unsolved problems in astronomy
 * Unsolved problems in biology
 * Unsolved problems in chemistry
 * Unsolved problems in geoscience
 * Unsolved problems in medicine
 * Unsolved problems in neuroscience
 * Unsolved problems in physics

Mathematics, statistics and information sciences

 * Unsolved problems in mathematics
 * Unsolved problems in statistics
 * Unsolved problems in computer science
 * Unsolved problems in information theory

Social sciences and humanities

 * Problems in philosophy
 * Unsolved problems in economics
 * Unsolved problems in fair division