Once in a LIVEtime is the second live album by American progressive metal band Dream Theater, released in 1998. It is their second live release. It was produced and recorded by Kevin Shirley during the European leg of the Touring into Infinity world tour, at the Bataclan theater in Paris.

Jay Beckenstein of Spyro Gyra plays alto saxophone on "Take Away My Pain". Beckenstein had previously played on the song "Another Day" on the album Images and Words.

The album cover, one of two designed by Storm Thorgerson for the band, shows an overhead view of the ancient Roman theatre in Orange, France set into a head of a monk. Like Falling into Infinity it does not feature the band's traditional logo due to Thorgerson's distaste in working with existing band logo designs. When Dream and Day Unite and Dream Theater are the only other albums without the classic font (although the font can be seen on the spine of Dream Theater).