The Englishman who first translated the Bhagavad-Gita into English is Charles Wilkins.

Charles Wilkins was a British orientalist and typographer who lived from 1749 to 1836. He was one of the early pioneers in the translation of Indian scriptures and literature into English. In 1785, Wilkins published the first-ever English translation of the Bhagavad-Gita, titled "The Bhagvat-Geeta, or Dialogues of Kreeshna and Arjoon," making this significant Hindu scripture accessible to the English-speaking world.

Wilkins` translation played a crucial role in introducing the Bhagavad-Gita to a broader audience and generating interest in Indian philosophy and spirituality in the West. His translation paved the way for further scholarly study and appreciation of Hindu scriptures by Western scholars and philosophers.

Therefore, Charles Wilkins is credited as the first Englishman to translate the Bhagavad-Gita into English.