The name Adair has been carried by numerous notable figures throughout history, including Scottish poet and satirist William Adair, and Sir John Adair, an Irish-born British naval officer and military historian. In North America, the Adair family name is most famously associated with James Adair, a Scottish-born Indian interpreter who became one of the first European settlers in present-day North Carolina. The name has also been popularized in American pop culture through the character Duke Adair in the novel and film "True Grit" by Charles Portis.
The name Adair holds spiritual significance in its potential connection to the Celtic tradition and its roots in the Gaelic language. The name Aodh is often associated with the Celtic god Aodh, who represents the sun, fire, and passion. Adherents of the Celtic spiritual tradition may view the name Adair as a reminder of the divine presence within and the importance of embracing the passions of life. Additionally, the name may reflect a connection to the spiritual values of courage, resilience, and a deep connection to nature, which are often associated with the Celtic tradition.