James Anthony Bailey, American circus ringmaster, co-founded Ringling Bros. and Barnum & Bailey Circus (died 1906)

James Anthony Bailey, was an American owner and manager of several 19th-century circuses, including the Ringling Bros. and Barnum & Bailey Circus.

The Ringling Bros. and Barnum & Bailey Circus, also known as the Ringling Bros. Circus, Ringling Bros., the Barnum & Bailey Circus, Barnum & Bailey, or simply Ringling, is an American traveling circus company billed as The Greatest Show on Earth. It and its predecessor have run shows from 1871, with a hiatus from 2017 to 2023. They operate as Ringling Bros. and Barnum & Bailey. The circus started in 1919 when the Barnum & Bailey's Greatest Show on Earth, a circus created by P. T. Barnum and James Anthony Bailey, was merged with the Ringling Bros. World's Greatest Shows. The Ringling brothers purchased Barnum & Bailey Ltd. in 1907 following Bailey's death in 1906, but ran the circuses separately until they were merged in 1919.