Arnaldo Pomodoro, sculptor, goldsmith, teacher, set designer, was born in Montefeltro, Italy on 23 June 1926. He grew up in Pesaro and he was schooled there in architecture and goldsmithing. Arnaldo is the brother of sculptor Giò Pomodoro (1930-2002). From the mid-1940s until 1957, Arnaldo served as a consultant for the restoration of public buildings in Pesaro that were bombed during World War II. During this time, he studied stage design and worked as a goldsmith with his brother Giò. 

In 1954, Arnaldo moved to Milan, where he met fellow artists Enrico Baj, Sergio Dangelo, and Lucio Fontana. His work was first exhibited that year at the Galleria Numero in Florence and at the Galleria Montenapoleone in Milan. The following year his sculpture was shown for the first time at the Galleria del Naviglio in Milan. Arnaldo visited New York in 1956, traveled around Europe in 1958, and visited Paris is 1959 where he met Alberto Giacometti and Georges Mathieu. He helped found the Continuità group in Italy in 1961–62.

Arnaldo traveled to Brazil for the 1963 São Paulo Biennial, where he was awarded the Sculpture Prize. The Venice Biennale of 1964 featured a solo show of his work and the following year he was given the first of many solo exhibitions at the Marlborough Galleries in New York and Rome. In 1966, Arnaldo was commissioned to make a sphere for the Expo in Montreal, which is now in front of the Farnesina in Rome. In 1967, he was represented in the Italian Pavilion at Expo ’67 in Montreal, and he received a prize at the Carnegie International in Pittsburgh.

During the late 1960s and early 1970s, Arnaldo executed commissions for outdoor sculpture in Darmstadt, New York, and Milan. He has many monumental sculptures in squares and important locations around the globe. In 1975, a retrospective of Pomodoro work, sponsored by the Municipality of Milan, was held at the Rotonda della Besana.

Arnaldo taught in the art departments at Stanford University in Palo Alto, California; the University of California, Berkeley; and Mills College in Oakland, California. The Fondazione Arnaldo Pomodoro, founded in 1995, for which Pomodoro served as director, has been dedicated to the exhibition and funding of artists.

Arnaldo Pomodoro lives and works in Milan.