Walnut (Juglans) is a genus of trees in the family Juglandaceae, (including Persian Walnut, Japanese Walnut and White Walnut) as well as the nuts growing on those types of tree, and the Walnut oil that can be produced from them, and the Walnut ink produced from their husks.

Walnut may also refer to:

• "African walnut", a common name for the unrelated African tree Coula edulis in the family Olacaceae

Places

United States

• Walnut, California
• Walnut, Illinois
• Walnut, Indiana
• Walnut, Iowa
• Walnut, Kansas
• Walnut, Mississippi
• Walnut, North Carolina
• Walnut Canyon National Monument, Arizona
• Walnut–Locust (SEPTA station), a subway station in Philadelphia
• Walnut River (Kansas) and Little Walnut River, rivers in Kansas
• Walnut Springs, TexasUnited Kingdom
• Walnut Tree, Milton Keynes, England

Other uses

• Paulie Walnuts, a fictional character from the HBO series The Sopranos
• Walnut elimia, a North American gastropod
• Walnut sauce (also known as walnut paste), a food paste in Persian and Georgian cuisine
• Walnut Whales, a folk music EP
• Walnut Whip, British confection