Her tour will begin from August 2 in Los Angeles and end one month later in Toronto.
"Encore" will be released after the tour ends, said the Entertainment Weekly.
Streisand, 74, will sing career hits as well as songs from Encore in her tour.
It follows Streisand's 2014 album "Partners", and will feature duets with some of "Hollywood's biggest stars to sing Broadway classics."
This will be her third Broadway-focused album, following 1985's "The Broadway Album" and 1994's "Back to Broadway".