This is a list of lists of unsolved problems in various subjects:

• Unsolved problems in biology
• Unsolved problems in chemistry
• Unsolved problems in cognitive science
• Unsolved problems in computer science
• Unsolved problems in economics
• Unsolved problems in egyptology
• Unsolved problems in linguistics
• Unsolved problems in mathematics
• Unsolved problems in medicine
• Unsolved problems in neuroscience
• Unsolved problems in philosophy
• Unsolved problems in physics (incl. astrophysics)
• Unsolved problems in software engineering

See also

• Open problem
• Encyclopedia of World Problems and Human Potential

External links

• New York Times article on leading unsolved questions in science

Unsolved problems | Lists of lists | Lists that should be categories

Problemas no resueltos | 미해결 문제 | בעיה פתוחה | Lista de problemas em aberto | Seznam nerešenih problemov