Rafael Martínez Nadal (April 22, 1877 – July 6, 1941) was a Puerto Rican politician, senator, journalist, and businessman.

He was an orphan from an early age, since his mother, Estebanía Nadal Freyre died hours after his birth, and his father, Rafael Martínez Santana, when he was only five years old.

He spent the next years between Paris, Madrid and Barcelona, where he was a businessman in fields as varied as bullfighting, meat distribution, theater production and coffee importation.

He also became a journalist and joined the Puerto Rico Republican Party founded several years earlier by doctor José Celso Barbosa.

He was buried at Santa María Magdalena de Pazzis Cemetery in San Juan, Puerto Rico.