Addy is a unisex given name of uncertain origin, but often attributed to several possible sources. One theory suggests it could be a diminutive of the name Adeline, which means "noble" in French. Alternatively, Addy may also derive from the name Adalheidis, a German name that translates to "noble and joyful." The name has been used historically but gained more popularity in the mid-20th century. It is often associated with warmth and approachability due to its familiar sound.
The name Addy experienced significant fluctuations in popularity over the years. After a slow start with fewer than 10 births annually from 1974 to 1986, it gained traction, peaking at 63 births in 2011. However, since then, its popularity has declined, with only 35 births recorded in 2023. Overall, Addy has been given to 1435 newborns since 1974.