UFC 159: Jones vs. Sonnen was a mixed martial arts event held on April 27, 2013, at the Prudential Center in Newark, New Jersey.

The year 2013 was the 21st year in the history of the Ultimate Fighting Championship (UFC), a mixed martial arts promotion based in the United States. 2013 started with UFC on FX: Belfort vs. Bisping. 2013 also saw the introduction of the women's bantamweight weight class with UFC 157: Rousey vs. Carmouche.