Simply Deep is the debut solo studio album by American singer Kelly Rowland. It was first released through Columbia Records and Music World Entertainment on October 22, 2002, in North America, and on February 3, 2003, in other areas. Recorded in three weeks during the hiatus of her group Destiny's Child, it established Rowland as a solo star. It includes guest appearances by Solange Knowles and Joe Budden. It was preceded by the single "Dilemma" with Nelly.

It debuted and peaked at #12 on the US Billboard 200, becoming Rowland's lowest-charting album to date, selling 77,000 copies in its first week. It eventually sold over 600,000 copies and was certified Gold by the Recording Industry Association of America (RIAA) in 2002. It also topped the UK Albums Chart. and won two trophies at the TMF Awards in the Netherlands, including Best R&B International Artist. It is Rowland's best-selling album to date with more than 2 million copies worldwide.

In late 2003, nearly a year after the album's initial release, Rowland embarked on the Simply Deeper Tour to promote the album in Europe. It started in the United Kingdom on September 13, 2003, and concluded on October 6, 2003, in Paris, France, its 17th venue.