| Hethel Old Thorn | |
| Type: | Nature reserve |
| Grid Ref Uk: | TG 171 005 |
| Location: | Norwich, Norfolk |
| Area: | 0.025ha |
| Manager: | Norfolk Wildlife Trust |
Hethel Old Thorn is a 0.025abbr=offNaNabbr=off nature reserve south-west of Norwich in Norfolk. It is managed by the Norfolk Wildlife Trust.[1]
This is the smallest wildlife trust nature reserve in Britain, consisting of one ancient hawthorn tree, which may date to the thirteenth century. In 1755 its girth was recorded as 9 feet 1 inch, and it has now decayed to a much smaller size, but it is still healthy.[1]