John B. Maberry (December 17, 1841 – December 17, 1922) was an American Civil War Medal of Honor recipient from Smyrna, Delaware, who served in the United States Army as a sergeant in Company F of 1st Delaware Infantry.

His citation was awarded for his service as a private during the Battle of Gettysburg on July 3, 1863, and reads "Capture of flag."

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