Jack Newton (b. 1942) is a Canadian astrophotographer credited with some of the most famous ground-based photographs ever taken.

That year Tom Watson defeated Jack Newton, 71 to 72, in what turned out to be the British Open's last 18-hole playoff.

Jack Newton is a golfer.

Jack Newton may also refer to:

Jack Newton (Toronto politician)

Jack Newton tirelessly promotes the need for preservation of the night skies as a heritage for our children.

Defeated Jack Newton in 18-hole playoff - Watson (71), Newton (72)

The explosion was discovered by Jack Newton in scans of images produced by Tim Puckett.

Omega Centauri, brightest of all globular clusters ( Jack Newton).

M35, open cluster in Gemini ( Jack Newton).