Eder may refer to:

• Eder (surname)
• Éder (given name), a Portuguese or Spanish given name
• Éder (footballer, born 1986), Brazilian footballer Éder Citadin Martins
• Eder (footballer, born 1987), Portuguese footballer from Guinea-Bissau Ederzito António Macedo Lopes

• Eder (Fulda), a river in western Germany, tributary to the Fulda
• Eder (Eggel), a river in western Germany, tributary to the Eggel
• Eder (finance), a social institution of Ethiopia

This disambiguation page lists articles associated with the title Eder.
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