Cadsden is a hamlet in South Buckinghamshire, England, two miles north east of Princes Risborough. At the 2011 Census the population of the hamlet was included in the civil parish of Lacey Green
The origin of the name, which also appears as Catsdean, is doubtful and it is not known when it was first used. If it dates back to Anglo-Saxon times, when most of the other local place names first appeared, it probably meant 'Valley frequented by wild cats'. It is certainly at the bottom of a steep valley.
It is said that in 1643 a wake was held in Cadsden for John Hampden by his beloved Greencoats, whilst escorting his body back to the family home at Great Hampden from Thame, where he died following the Battle of Chalgrove Field
On 30 January 1943 a Royal Air Force (RAF) Avro Anson Mk1 serial no. L7964 was on a Night Navigation Training exercise from the Central School of Navigation, flying from RAF Cranage, Cheshire. The weather conditions were poor and at 0250 hrs the Anson crashed at Longdown Farm in Cadsden 
The accident was witnessed by an instructor in a second aircraft. All four crew members died, they were:
Sgt Edward A. Merry, Pilot, Sgt James R. Craven Pilot, Sgt Kenneth R. Blaskey Pilot, Sgt Albert C. Poulton Wireless Operator/ Air Gunner.
The railway service in the area was improved in 2011 with the Chiltern Mainline project. The two nearest mainline railway stations are Princes Risborough (2 miles, usually 33/40 mins to Marylebone) and Great Missenden (9 miles, 40 mins to Marylebone) with a branchline station at Monks Risborough (1 mile, 52 mins to Marylebone).
Local amenities and traditions
Every year on the first Sunday in August there is a Cherry Pie Festival, which has been a tradition in Cadsden for over 100 years.
Grangelands and Pulpit Hill, which stretch from Cadsden to Kimble, are a Site of Special Scientific Interest (SSSI)  with an array of wildlife including glow worms  and the bee orchid. Up on Pulpit Hill, set within Pulpit Woods, are the remains of an Iron Age hill fort, a scheduled ancient monument.
Whiteleaf Golf Course, which occupies the land between Whiteleaf and Cadsden, is a 9-hole course established in 1907. During the winter months when it snows, the Cadsden end of the course is used for tobogganing.
Local issues are addressed and events organised by the Whiteleaf and Cadsden Resident's Association
Relationship with Prime Ministers
Chequers, the Prime Minister's country residence, is the first property encountered along The Ridgeway path north east from Cadsden. This walk was featured in an article published by the Sunday Times in June 2010.
The Plough at Cadsden is a country pub which is used by Prime Ministers due to its proximity to Chequers. David and Samantha Cameron, during one of their many stays at Chequers, watched the Whitchuch Morris Men perform at the Plough several times on Boxing Day. There is even an old picture of Ted Heath propping the bar up at the Plough, a copy of which can be seen on the Plough's website 
Cadsden and the Plough at Cadsden were brought to attention when David and Samantha Cameron left their 8-year-old daughter, Nancy, behind in the Plough following a Sunday lunch at the Plough.
Nancy had wandered off to the toilets while they were arranging lifts. When Cameron left the pub he went home in one car with his bodyguards and thought Nancy was with his wife and their other children in another car. Samantha Cameron had assumed her eldest daughter was with her father. The mistake was only discovered when they got home.
"Thankfully when they phoned the pub she was there safe and well. The prime minister went down straight away to get her." said a Downing Street spokesman 
In November 2015 David Cameron took the Chinese President Xi into the Plough at Cadsden for a pint of real ale and some fish and chips 
- History of Princes Risborough inc Cadsden Archived 10 June 2011 at the Wayback Machine
- /Extract from John Marius Wilson's Imperial Gazetteer of England and Wales (1870-72)
- For instance in the Monks Risborough Inclosure Award of 1839.
- It is not mentioned in Mawer & Stenton: The Place Names of Buckinghamshire published by the Place Names Society in 1925, nor in Eilert Ekwall: The Concise Oxford Dictionary of English Place Names (4th edition 1960), nor in the Cambridge Dictionary of English Place Names.
- The Old English word denu meaning a dene or valley is common in place names, where it may be spelt -dene, -den, or -dean, and cats as a prefix usually indicated that the place was inhabited by wild cats. See Ekwall's Concise Oxford Dictionary of English Place Names under 'denu' and 'catt'. See also Kenneth Cameron: English Place Names (1961) at page 180 (on dean & den) and pages 168 & 192 (on cats).
- "A life of John Hampden The Patriot" by Dr John Adair(1976)
- "Princes Risborough Memorials". Archived from the original on 26 February 2014. Retrieved 23 February 2014.
- "/ Bucks gathering of the last of the black cherries". Archived from the original on 13 November 2013. Retrieved 13 November 2013.
- AONB SSI Archived 22 July 2011 at the Wayback Machine
- Glow Worm Sites[permanent dead link]
- Pulpit Hill Iron Age Fort
- Megalithic Portal (Pulpit Hill)
- Whiteleaf Golf Club Archived 13 September 2010 at the Wayback Machine
- Youtube footage of tobogganing in Cadsden
- Youtube footage of tobogganing in Cadsden
- Whiteleaf and Cadsden Resident's Association Website
- Sarah Harding buys a Bucks Mansion Near Princes Risborough
- Sunday Times Walks, Cadsden
- Christopher Simerville, Travel Writer
- Bucks Herald 4th Jan 2012
- Bucks Herald 30th Dec 2013
- Plough's website Archived 13 November 2013 at the Wayback Machine
- / BBC News Story
- Guardian News Story
- Midsomers Murders locations Archived 27 July 2011 at the Wayback Machine
- Youtube footage of crash in Longdown Hill car park
- / Hammer House of Horror TV series website