Brigadier General Alberto A. Nido (March 1, 1919 – October 27, 1991) was a United States Air Force officer who served in the Royal Canadian Air Force and in the United States Army Air Force during World War II. He was also the co-founder of the Puerto Rico Air National Guard. 

Nido was born and raised in the town of Arroyo, Puerto Rico. There he received his primary and secondary education. In 1938, he enrolled in the University of Puerto Rico and studied mechanical engineering in the institution's Mayagüez Campus.

During his days as a university student, he decided that he would like to become an aviator for the United States Armed Forces. After he earned his college degree, Nido traveled to the island of Saint Thomas of the U.S. Virgin Islands with the intention of joining the United States Naval Aviation. 

Nido passed the physical examination, however he was denied acceptance into the aviation program because of a minor dental problem. According to the examining medical doctor, the fact that he had one tooth that grew above another, would make it impossible for him to fly in high altitudes. 

He then traveled to Washington, D.C. and attempted to join the armed forces there. After passing the physical examination, he was once more denied acceptance because of the same reason as before. Nido then traveled to Tulsa, Oklahoma and enrolled in the Sparton School of Aviation where in 1941, he received his pilots certificate. 

World War II - On December 24, 1942, Nido was sent to London, England and participated on the European Theater of the war as a bomber pilot. He was transferred to 610th Squadron of the British Royal Air Force and participated in various combat missions as a Supermarine Spitfire pilot. In November of 1943, Nido, then a Captain, was among 10 pilots of the 67th Reconnaissance Squadron who were sent to weather school at RAF Zeals under the command of Col T S Moorman. His unit participated in 275 combat missions. Later, in 1943, Nido and 59 other American pilots were transferred to the U.S. Army Air Forces. He was assigned to the 67th Fighter Group as a P-51 Mustang fighter pilot. Nido baptized his P-51 with the name of "Alile" in honor of the girl that he left back home.         

Post World War II - After the war he continued to serve in the Army Air Force and in 1947, was reassigned to the newly formed United States Air Force. On November 23, 1947, the Puerto Rico Air National Guard (PRANG) came into existence as a result of the efforts led by Colonel Alberto A. Nido, Colonel Mihiel Gilormini, and  Lieutenant-Colonel Jose A. Muñiz. Nido served as commander of PRANG for many years and was later assigned to the National Guard Headquarters as Chief of Staff for Air.

In January 1966, Nido, approached Maj. Gen. Winston P. Wilson, Chief of the National Guard Bureau, inquired about the possibility of constructing a range at the Army Guard’s Salinas Training Area (Camp Santiago), located 35 miles on the South coast area of Puerto Rico. Two days later, Brig Gen. Salvador Roig approved a plan for this project and assigned Captain Gabriel I. Peñagarícano as project officer. The NGB budgeted $10,000 for this construction, this tight budget required a maximum in-house effort.  

The U.S. Army Antilles Command, caretakers of the Salinas Training Area, provided earth-moving equipment and personnel to level the target area. They also dug necessary holes for electric power poles, communications and strafing and skip-bombing targets. The range towers were donated by the air depot at McDill AFB ad transported directly to the range on C-123 aircraft.