Thomson Snell & Passmore
| Headquarters | Tunbridge Wells | 
|---|---|
| No. of offices | 2 | 
| No. of attorneys | 130 | 
| No. of employees | 242 | 
| Major practice areas | General Practice | 
| Key people | Senior Partner – Joanna Pratt CEO – Sarah Henwood | 
| Revenue | £21.2m (2018) | 
| Date founded | 1570 | 
| Founder | Nicholas Hooper | 
| Website | Official website | 
Thomson Snell & Passmore is a law firm in Kent, in the United Kingdom. It holds the Guinness World Record for being the oldest continually operating law firm still in existence. Some of the documents retained by the firm have been used in the television series Downton Abbey to lend an air of authenticity to the show.