Ramón Grau San Martín (September 13, 1881, La Palma, Pinar del Río Province, Spanish Cuba – July 28, 1969, Havana, Cuba) was a Cuban physician and President of Cuba (1933–1934, 1944–1948).
He was the last president other than an interim president, Carlos Manuel Piedra, to be born during Spanish rule.
He is sometimes called Raymond Grau San Martin in English.