Ignacio Eugenio Lozano Jr. was an American diplomat who was United States Ambassador to El Salvador. He was appointed to the ambassadorship by President Gerald Ford in 1976. He resigned the post following the assumption of the presidency by Jimmy Carter. Lozano was born in San Antonio, Texas to Mexican immigrants Ignacio E. Lozano Sr. and Alicia Elizondo Lozano. He studied journalism at University of Notre Dame.