Cornplanter may refer to:

• Cornplanter (c. 1750–1836) (Gaiänt'wakê or John Abeel), Seneca war-chief, ancestor of all others with the name
• Edward Cornplanter (1856–1918) (So-son-do-wa), Seneca chief and religious leader
• Carrie Cornplanter (1887–1918) (Teton), Seneca artist, daughter of Edward
• Jesse Cornplanter (1889–1957) (Hayonhwonhish), Seneca artist and author, son of Edward, last male descendant of John

• Cornplanter State Forest, a Pennsylvanian wood
• Cornplanter Township, Venango County, Pennsylvania, United States
• Cornplanter Tract, a now-flooded tract of land in Warren County, Pennsylvania

• Cornplanter Run (Oil Creek), a tributary of Oil Creek in Pennsylvania

• Corn planter, a planter (farm implement) for maize (corn)
• All pages with titles beginning with Cornplanter

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