Denver Nightingale is the official website dedicated to the legendary recording artist Billy Murray (1877-1954). Murray, referred to as the Denver Nightingale by his contemporaries, was a highly successful and influential comedian of the early 20th century. He played a major role in popularizing many now-classic American songs.

This website, founded in 2007 by collector Ryan Barna, serves as a collaborative hub for collectors and researchers interested in Murray's work. In 2009, it earned the official status, receiving the blessing of Murray's direct relatives and descendants. The website's primary purpose is to provide a platform for learning and exchanging knowledge on Murray's life and discography.

Ryan is currently working on a thoroughly revised biography and discography, set to be published around 2014. Although Murray and his estate do not receive royalties from the reissues of his recordings, this website financially supports his estate by giving a percentage of sales or profits, including those from books or CDs sold through the site