Theology is the eighth full-length album by Irish singer Sinéad O'Connor.

The first single from Theology is "I Don't Know How to Love Him" (an Andrew Lloyd Webber and Tim Rice song from Jesus Christ Superstar).

In the issue dated 14 July 2007, the album entered the US Billboard 200 chart at number 168.

First-week sales of the album in the US amounted to 4,700 units, while the record also charted in Ireland, France and Italy.

The exclusive edition sold at Best Buy stores in the United States includes five additional live tracks, recorded at Dublin's Sugar Club on 8 November 2006.