The Nutshell is a pub in Bury St Edmunds, Suffolk, England, claiming to be the smallest pub in Britain, although this claim is challenged by several others, including the Smiths Arms at Godmanstone and the Lakeside Inn in Southport. However those two establishments while having smaller interior space seat most of their clients outside in a beer garden. Whatever the truth of its claim, the pub is certainly diminutive so that no more than ten or fifteen customers can drink inside at any one time. The pub measures 4.57 x 2.13m. In 1984, a record number of 102 people squeezed into the pub.
Inside the pub is suspended the dried body of a black cat, discovered during building work. See Dried cat.