Rodriguez was born in Bryan, Texas. Her parents are Diane and Roy Rodriguez, who own a Rodriguez Tire business. She is the older sister of actor Rico Rodriguez. She has two other brothers, Ray and Roy Jr.
Raini Alena Rodriguez was born on July 1, 1993 in Bryan, Texas. Her parents, Diane and Roy Rodriguez, own a business called Rodriguez Tire Service. She is of Mexican American descent.
As a young girl, Rodriguez enjoyed acting. One day, at an IMTA showcase, Raini was discovered by Susan Osser, a California talent agent. After viewing Raini's performance, Osser suggested to Raini's mother that Osser should become Raini's manager and come to California to give Raini a year for career opportunities. At the time, Raini was eleven years old. Her mother agreed to Osser's proposal. Raini (with Rico, her little brother, who also signed with a talent manager) moved to Los Angeles. Diane accompanied them temporarily while Roy stayed in Bryan to run the tire shop. Their mother home-schooled them to support their careers.