Rafael Tobías Hernández Alvarado (born August 24, 1953) is a Venezuelan former professional baseball catcher. He played briefly for the Toronto Blue Jays of Major League Baseball (MLB) in its 1984 season. Hernández was regarded as a good-fielding, light-hitting catcher in the Jays organization, but after a long history of injuries he was able to reach the majors just at 31. In his brief stint at Toronto, he went 1-for-2 and scored a run in three games. Additionally, he posted a .223 average with 11 home runs and 122 RBI in parts of seven minor league seasons between 1979 and 1985.