The British Battalion was the 16th battalion of the XV International Brigade, one of the mixed brigades of the International Brigades, during the Spanish Civil War. It comprised British and Dominion volunteers.

Shapurji Dorabji Saklatvala was a communist activist and British politician of Indian Parsi heritage. He was the first person of Indian heritage to become a British Member of Parliament (MP) for the UK Labour Party and was also among the few members of the Communist Party of Great Britain (CPGB) to serve as an MP.