The very first logo for the franchise Arby's resembled a cowboy hat and emphasized what the restaurant was known for selling. The reason for the iconic hat used as a part of the logo? As far as we’re aware, the hat shape didn’t have a deeper meaning. In 1964, when the restaurant was first established, westerns were incredibly popular and the brand thought it was a good idea to incorporate it into their logo. The cowboy hat served as the base of the design and ended up carrying over into their redesigns.

Source: Hatchwise