The coastguard received several 999 calls from 7.21pm, saying that a man had got stuck after trying to rescue his dog.
The pet had been chasing after a rabbit and the owner was found about 150 feet down the cliff when emergency services attended.
As well as the coastguard, search and rescue, ambulance and fire service staff were also called out.
Neither the dog nor its owner was injured.
The girlfriend of the dog owner said on social media: ‘After what has been the scariest night of my life, I just want to say a massive thank you (and sorry) to the Isle of Man coastguard, fire and ambulance crews that were called out tonight to rescue my boyfriend and our dog Zack after he chose to chase a rabbit down a 200ft cliff off Marine Drive.
‘I don’t know what I would have done without our local heroes.’
Douglas coastguard and the fire and rescue service are now reminding the public to call 999 to recover dogs in danger.
A coastguard spokesman said: ‘The fire service, paramedics and coastguard were able to join resources to achieve a successful outcome to what could have been a very different outcome.
‘All agencies would like to take this opportunity to remind everyone that should you find yourself in a situation like this, call 999 and let the emergency services recover your dog and to never put yourself in danger such as this.’