An apparatus for manufacturing golf balls each having an exterior pattern includes a conveying device and a spraying device. The spraying device is disposed at one side of a first processing area. The conveying device is configured to convey a ball-shaped body into the first processing area along a predetermined path, and to rotate the ball-shaped body at a predetermined speed. The spraying device includes a first sprayer and a second sprayer. The first sprayer and the second sprayer are configured to apply a color paint to the ball-shaped body from each of an upper position and a lower position.