2003 British Speedway Championship

The 2003 British Speedway Championship was the 43rd edition of the British Speedway Championship. The Final took place on 5 July at Arlington Stadium in Eastbourne, England. The Championship was won by Scott Nicholls, who beat Dean Barker, David Norris and Joe Screen in the final heat.

British Final

 * 5 July 2003
 * 🏴󠁧󠁢󠁥󠁮󠁧󠁿 Eastbourne

British Under 21 final
Simon Stead won the British Speedway Under 21 Championship for the third consecutive year. The final was held at Owlerton Stadium on 24 April.