| El Reino Olvidado | |
| Type: | Studio |
| Artist: | Rata Blanca |
| Cover: | Rata Blanca El Reino Olvidado.jpg |
| Recorded: | February – March 2008 at La Nave de Oseberg, Buenos Aires, Argentina |
| Genre: | Hard rock, heavy metal |
| Length: | 55:16 |
| Label: | PopArt Music |
| Producer: | Walter Giardino |
| Prev Title: | La Llave de la Puerta Secreta |
| Prev Year: | 2005 |
| Next Title: | Tormenta Eléctrica |
| Next Year: | 2015 |
El Reino Olvidado (The Forgotten Kingdom) is the ninth studio album by the Argentine band Rata Blanca. The album was edited and released on August 21 of 2008 by PopArt Music. Two weeks after the release date the album obtained the gold album certification.
An English-language version of the album was recorded with Doogie White (Rainbow, Yngwie Malmsteen) on the vocals. The English version was released on October 28 of 2009.
The album (Spanish version) received a Latin Grammy Award nomination for Best Rock Vocal Album, Duo or Group.[1]