Rodriguez grew up with two half-siblings, Joe and Suzy, who were born in the Dominican Republic and are children from his mother's first marriage. Rodriguez also has a half-brother, Victor M. Rodriguez, who was born to Alex's father Victor Sr. and his then-wife Pouppe Martinez in 1960. The couple divorced a year later, and Victor Jr. was raised by his mother. Victor Jr., who is an officer in the United States Air Force, fell out of touch with Alex for a period of 23 years, until they met at a Texas Rangers game in 2003. His nephew, Joe Dunand, is a professional baseball player.