Athanase Adolphe Henri Boissevain (8 March 1843 – 1 April 1921) was a Dutch banker who financed North American railways. He was from a prominent Boissevain family that had long been active in the banking and insurance industries in Amsterdam. One of Adolphe's primary businesses was in financing railway companies, particularly railway companies. He helped reorganize Union Pacific in 1893. He was also one of William Van Horne's main contacts in organizing financing for the Canadian Pacific Railway.