A Bronx native who enlisted in the US Marines and was killed in one of the deadliest days for American women in uniform was immortalized with a street sign Saturday.

Tearful family and friends at East Fordham Road and Grand Concourse looked on as the sign commemorating the intersection as “Marine Corporal Ramona M. Valdez Square” was unveiled.

“It’s special to know that her name will be here for years to come, just 10 minutes from where we lived,” Valdez’s sister, Fiorela Valdez, told The Post. “I’ll be able to show my children and grandchildren, ‘Look this is your aunt.’”

Ramona Valdez signed up to join the Marines at a recruiting station nearby.

Valdez was killed on June 23, 2005, when the convoy she was riding in came under attack as part of what was then the deadliest day for US women in uniform since World War II.

The young corporal, killed just three days before her 21st birthday, was one of three female Marines to die as their was bombed and rushed by rebels as it headed to Camp Fallujah.

“This is a very emotional day,” Valdez’ sister, Fiorela said. “She was my hero.”

Valdez’ mother, Elida Nunez, and another sister stood nearby as Fiorela choked back tears while speaking during the ceremony. The family of Holly Charette, who died in the same attack as Valdez, also attended, along with about 40 local residents and veterans.

“She signed up because of me,” said Sgt. Estee Fortunado, a childhood friend and fellow Marine. “I’m happy this is happening for her today.”

City Council member Fernando Cabrera, who requested the renaming, called Valdez “a true Bronx hero.”

Valdez was born in the Dominican Republic and raised in the Bronx. She joined the Marines at 17, hoping to earn money to help her family. She had plans to become a police officer after she was discharged.

After her death, the Valdez Training Facility was named after her in Camp Lejeune.