Dilthey is a surname. Notable people with the surname include:

• Helmut Dilthey (1894–1918), German First World War flying ace
• Karl Dilthey (1839–1907) German classical scholar and archaeologist
• Wilhelm Dilthey (1833–1911), German historian, psychologist, sociologist and philosopher, brother of Karl

This page lists people with the surname Dilthey.
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