"County Fair" is a song written by Brian Wilson and Gary Usher for the American rock band The Beach Boys. It was originally released as the second track on their 1962 album Surfin' Safari. On November 26 of that year, it was released as the B-side to The Beach Boys' third single, "Ten Little Indians". The same single was released in the UK in January 1963.

An agricultural show is a public event exhibiting the equipment, animals, sports and recreation associated with agriculture and animal husbandry. The largest comprise a livestock show (a judged event or display in which breeding stock is exhibited), a trade fair, competitions, and entertainment. The work and practices of farmers, animal fanciers, cowboys and zoologists may be displayed. The terms agricultural show and livestock show are synonymous with the North American terms county fair and state fair.