Thankful is the debut studio album by American singer Kelly Clarkson, released in the United States by RCA Records on April 15, 2003.

Thankful has sold 2,800,000 copies in the United States, receiving a 2× platinum certification from the Recording Industry Association of America (RIAA).

[4] In Canada, Thankful was certified platinum for 100,000 copies shipped by the Canadian Recording Industry Association (CRIA).

Copies of Thankful sold during its first year of release contained a computer program that could be loaded, and used with the internet for artist updates and music videos.

Thankful included four cover tracks, "(You Make Me Feel Like) A Natural Woman" originally by Aretha Franklin, "Some Kind of Miracle" originally sung by Puff Johnson, "Anytime" by Mary Griffin and "Just Missed the Train" by Trine Rein.

"Just Missed the Train" and "You Thought Wrong" had been planned for possible single releases, but after the underperformance of "Low" and "The Trouble with Love Is", they were canceled.