Arnaldo Dell'Ira (21 March 1903 – January 1943) was an Italian architect.
He was hired as a draftsman in the main architectural firms of his time, both in Rome and Florence, and with his work well represents the Italian architectural culture during the interwar period in all its components, reflecting the contrasting formal trends (first secessionists, futurists and Art Deco, later rationalists and classicists).