A number of professional associations for barristers in England and Wales. There are presently four, but there were previously a number of others.
- The Honourable Society of Lincoln's Inn
- The Honourable Society of the Inner Temple
- The Honourable Society of the Middle Temple
- The Honourable Society of Gray's Inn
The Wikipedia page is [1].
An article by The Inner Temple here.
The Council of the Inns of Court website is [2].