Alejandro Hernández Julia (born October 1, 1977 in Tijuana, Baja California) is a tennis player from Mexico.
Hernández turned professional in 1995. A right-hander, he represented his native country at the 1996 Summer Olympics in Atlanta, Georgia, where he was defeated in the first round.
Hernández reached his highest singles ATP-ranking on February 24, 1997, when he became the 125th best player in the world.