Pérez, 40, who was born in Paris but had family living in Granada, was killed along with his wife, reported Radio Ser, in the terrorist attack that claimed at least 129 lives.
Spain's Foreign Ministry confirmed on Tuesday that they had been informed by French authorities that the victim held a Spanish passport alongside a French one.
He was the father of two girls aged seven and 10, reported Spanish news agency Efe.
Spanish authorities had on Saturday confirmed the death of Juan Alberto González Garrido, a 29-year-old Spanish engineer from Granada, who was also gunned down during the rock concert.
"He was trying to protect me," said his wife Angela, who escaped from the concert hall unharmed. The pair who had been living in Paris for two years only married in the summer.
Spanish authorities had also confirmed the death of 27-year-old Michelli Gil Jáimez, who had dual Mexican and Spanish nationality. She was killed in the attack on La Belle Equipe restaurant.
Two other Spanish men initially reported to have died in the worst terrorist attacks to be carried out in Europe since the Madrid train bombings, were discovered to be alive and unharmed on Sunday.
Alberto Pardo Touceda, 34 from Pontevedra, Galicia and Jorge Alonso de Celada, 59, from Madrid were both intiially thought to have been killed in the attacks and their families were informed.
But both have since been in touch with loved ones to assure them that they are unharmed.