There have been two Baronetcies created for persons with the surname Knollys, one in the Baronetage of England and one in the Baronetage of Great Britain. Both creations became extinct on the death of the first holder.

The Knollys Baronetcy, of Grove Place in the County of Southampton, was created in the Baronetage of England on 6 May 1642 for Henry Knollys. The title became extinct on his death in 1648.

The Knollys Baronetcy, of Thame in the County of Oxford, was created in the Baronetage of Great Britain on 1 April 1754 for Francis Knollys, subsequently Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Reading

Reading (UK Parliament constituency)

Reading was a parliamentary borough, and later a borough constituency, represented in the House of Commons of the Parliament of the United Kingdom. It comprised the town of Reading in the county of Berkshire....

. The title became extinct on his death in 1772.