Arthur Samuel Lall (1911 – 13 September 1998) was an Indian diplomat, writer, and anti-nuclear activist who served as a consul general of India and the 4th permanent representative of India to the United Nations from September 1954 to December 1958.

[2] Best known for his role to involved the newly independent India in the International affairs, he also wrote several books on politics such as The UN and the Middle East crisis, 1967 and The Emergence of Modern India besides writing novels and poems.

After the Indian subcontinent partitioned into two sovereign states, his family moved from Lahore, Pakistan to India.

Prior to his diplomatic career, he was a government official in New Delhi and the first trade commissioner of India in London.

He was actively involved in the Strategic Arms Limitation Talks between the United States and the Soviet Union during his diplomatic career.