Arnaldo is an Italian and Spanish male given name of Germanic origin, meaning "strong" or "powerful". It is derived from the Germanic element 'arn', which means "eagle", combined with the Old High German suffix '-ald'. This name has been associated with several notable figures throughout history, including the Italian composer Arnaldo de Saluzzo and the Spanish painter Arnaldo Pomodoro. In Italy, it ranks among the top 100 most popular male names, while in Spain, it is less common but still appears occasionally. Despite its Germanic roots, Arnaldo has been widely adopted across Europe and beyond, reflecting its versatility as a global name choice.
The name Arnaldo experienced significant fluctuations in popularity over the course of a century, with a peak of 90 births recorded in 1989. However, since the early 2000s, its usage has declined significantly, with fewer than 20 births per year on average from 2003 onwards. Overall, there have been a total of 2067 births named Arnaldo between 1915 and 2023.