Ramón José Hernández (Spanish pronunciation: ; born May 20, 1976 in Caracas, Venezuela) is a Major League Baseball catcher and right-handed batter for the Cincinnati Reds. Previously, he played with the Oakland Athletics (1999-2003), San Diego Padres (2004-2005), and Baltimore Orioles (2006-2008).

Hernández is a career .262 hitter with 137 home runs, 572 RBI, and 455 runs scored in 1,132 games throughout his 10 seasons with the Oakland Athletics, San Diego Padres, and Baltimore Orioles. Hernández playes in Venezuela for losLeones del Caracas

Hernández made his debut with Oakland in June 1999 as a backup catcher for A.J. Hinch. His steady progress enabled the Athletics to trade Hinch to the Kansas City Royals a year later.