Darwin Harrikson Cubillán Salom [coo-be-yahn' / sah-lom'] (born November 15, 1972) is a Venezuelan former Major League Baseball right-handed relief pitcher.

Originally signed as a free agent by the Yankees in 1993, Cubillán has played in the MLB for the Toronto Blue Jays (2000), Texas Rangers (2000), Montreal Expos (2001) and Baltimore Orioles (2004).

Cubillán played in Japan for the Hanshin Tigers of the Central League, Nippon Professional Baseball (NPB) from 2005 until 2007.

He played using his first name "Darwin", because his last name Cubillán sounds like "Kubi yan" (クビやん) meaning "He is fired, isn't he?"

Cubillán also pitched winter ball for the Tigres de Aragua and Leones del Caracas clubs of the Venezuelan Professional Baseball League.