There are at least two artists called Arcadio; one from the USA and one from Finland.

1) Arcadio was conceived in Los Gatos, gestated in San Luis Obispo, and was born in San Francisco. Drummer Ross Heiman and singer Chris Manganello meet in grade school and began a music relationship there. While in college, they both meet guitarist Morgan Friberg and began playing soul songs and dissonent rock-influenced Americana.

In the fall of 2006, the three found themselves in San Francisco and began playing with a complete line-up after adding Morgan's old friend and bassist Scott Loganbill and Denise Cho on the Viola. Arcadio started playing around California with their unique yet unrecognized genre of "noirish-circus-gypsy-folk."

2) Arcadio is a Finnish pop artist that took part in the Finnish preselection for the 2000 Eurovision Song Contest with a song called "Rauhan saan".