To provide a defect correction device, a defect correction method, and an imaging device with which defect correction is performed on two images composing a 3D image without impairing a stereoscopic effect.

A defect correction device detects each defective pixel in a first image, detects each defective pixel in a second image, detects a defective area composed of the defective pixel detected in the first image, detects a defective area composed of the defective pixel detected in the second image, sets a range, in which defect correction is to be performed in the first image, based on the defective pixel detected in the first image and the detected defective area, sets a range, in which defect correction is to be performed in the second image, based on the defective pixel detected in the second image and the detected defective area, performs defect correction processing on the first image, based on the set correction range, and performs defect correction processing on the second image, based on the set correction range.