The protesters cut themselves free around 10pm after City of London Police entered the cathedral, an occupy spokesman said.
He said they decided to cut themselves free after being warned by officers that they faced arrest.
They have now left the cathedral.
Some of the awareness-raising they wanted to do has been done.
The Dean has also agreed to meet them and talk.
More top news
A man who was abused by John Allen as a child has spoken out as the former care home boss has been found guilty of a further eight charges.
A 101-year-old retired teacher has started a new hobby, giving inspirational talks to struggling young jobseekers.
Cloud cover will keep temperatures overnight a little warmer than usual for this time of year. Expect some mist and fog by morning.