Arnold School was an independent school in Blackpool, Lancashire, England, established on the Fylde coast in 1896 during the Victorian expansion of public boarding schools in England. The school was in the United Church Schools Trust group of schools and was a long-standing member of the Headmasters' and Headmistresses' Conference. In September 2012, Arnold School merged with King Edward VII and Queen Mary School in Lytham St Annes to form Arnold KEQMS (now AKS Lytham), and from September 2013 the new school was fully co-located at the Lytham St Annes site.