20th Century Masters – The Millennium Collection: The Best of Toby Keith

20th Century Masters – The Millennium Collection: The Best of Toby Keith is a compilation album of American country music artist Toby Keith's greatest hits. The album is part of a 20th Century Masters collection of similar albums. It features songs from his first four albums, all of which were released through Mercury Records.

Critical reception
20th Century Masters – The Millennium Collection: The Best of Toby Keith received four-and-a-half out of five stars from Stephen Thomas Erlewine of Allmusic. In his review, Erlewine praises the album as "a near-ideal summary of Keith's Mercury recordings as well as a fine introduction to the man himself."

Chart performance
20th Century Masters – The Millennium Collection: The Best of Toby Keith peaked at number 5 on the U.S. Billboard Top Country Albums chart. It also reached number 45 on the all-genre Billboard 200.

Sales and certifications
20th Century Masters – The Millennium Collection: The Best of Toby Keith was certified Gold by the RIAA in 2004 for shipments of 500,000 copies. As of August 2013, the album has sold 1,008,000 copies in the US.