Newnes, New South Wales is an abandoned oil shale mining site of the Wolgan Valley in Australia. It may also refer to:
Newnes (surname), list of people with the surname Newnes baronets, extinct baronetcy in the United Kingdom Newnes Glacier, glacier in Antarctica Newnes railway line, defunct railway line in Australia Frank Newnes Glacier, glacier in Antarctica Lady Newnes Bay, bay in Antarctica George Newnes Ltd, British publisher