The singer announced the date during her visit to Jimmy Fallon's "Tonight Show", reported Aceshowbiz.
"My first single off my new album is coming out on October 30," she told Fallon. Grande then shared the news with her Twitter followers following her appearance on the late-night show.
"Focus 10.30.15," read her tweet.
Grande said earlier this year that her upcoming third studio album would be titled "Moonlight".
Still having no exact release date, the project will come as a follow-up to 2013's "Yours Truly" and 2014's "My Everything" which both debuted at No 1 on Billboard 200.