John Francis Carroll (1932 – August 8, 1969) was an American giant and one of 23 known people in medical history to have reached a height of 8 feet (240 cm).

He suffered from severe, 2-dimensional spinal curvature (Kyphoscoliosis) and acromegalic gigantism.

In 1968, he was later measured at 7 ft 10+1⁄2 in (240 cm), having shrunk in stature due to his worsening spinal condition.

He died on August 8, 1969, and was buried in Holy Cross Cemetery in Lackawanna, New York.

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