"Lady" is the final single from the 2004 album Baptism by American rock musician Lenny Kravitz. It was released on November 23, 2004. The song is believed to be written about Kravitz's then-girlfriend, Nicole Kidman. The track was used heavily in the GAP ads. The commercials featured Kravitz dancing and singing the song with his guitar to Sarah Jessica Parker.

"Lady" was the most successful song from Baptism on the Billboard Hot 100, where it peaked at #27.

The video was directed by Philip Andelman. It consists of Kravitz playing guitar and singing in a circular stage, while women are dancing around him. There are lights that change depending on the intensity of the sound of the song.

ABC made use of the song to promote its hit television series Alias in commercials that appeared in full length in movie theaters and in edited form on the network.

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