Trost & Trost Architects & Engineers, often known as Trost & Trost, was an architectural firm based in El Paso, Texas. The firm's chief designer was Henry Charles Trost, who was born in Toledo, Ohio, in 1860. Trost moved from Chicago to Tucson, Arizona in 1899 and to El Paso in 1903. He partnered with Robert Rust to form Trost & Rust. Rust died in 1905 and later that year Trost formed the firm of Trost & Trost with his twin brother Gustavus Adolphus Trost, also an architect, who had joined the firm as a structural engineer. Between 1903 and Henry Trost's death on September 19, 1933, the firm designed hundreds of buildings in the El Paso area and in other Southwestern cities, including Albuquerque, Phoenix, Tucson, and San Angelo.

The First National Bank Building is a historic building in downtown Albuquerque, New Mexico, and the former headquarters of the First National Bank of Albuquerque. The nine-story building was completed in 1923 and was considered the city's first skyscraper with an overall height of 141 feet (43 m). It remained the tallest building in the city until 1954, when it was surpassed by the Simms Building.