Diadora S. P.A. is an Italian clothing company, based in Caerano di San Marco in Veneto, which produces footwear, T-shirts and other items such as backpacks and bags. The company was technical sponsor of the Italian national football team from 1986 to 1994.

The logo created in 1972, called the five balls, was composed of five rings, sizes of the letters to lowercase letters d, a, do, to, in the likeness of the symbol of the Olympic games; in 1973, to the text, thicker, and with the letters, most spaced out and full, you add an ornament which will become the company's logo, designed by the former employee Sergio Hen; by 2018, to celebrate the 70 years, has been dusted the logo in use in 1973.