God Hates Us All is the ninth studio album by American thrash metal band Slayer, released on September 11, 2001, by American Recordings. It was recorded over three months at The Warehouse Studio in Vancouver, and includes the Grammy Award-nominated song "Disciple". Guitarist Kerry King wrote the majority of its lyrics, taking a different approach from earlier recordings by exploring topics such as religion, murder, revenge, and self-control. Stylistically, the album shows a return to Slayer's classic thrash metal sound. It was Slayer's last album to feature drummer Paul Bostaph until his return on their 2015 album Repentless.

The album's release was delayed due to its explicit cover artwork, which led to alternative slip covers in some retail outlets, difficulties during mixing, and a change of distributor for the band's label. Despite this, God Hates Us All received positive reviews from critics and peaked at number 28 on the Billboard 200. By 2009, it had sold over 319,000 copies in the United States.

Slayer began writing lyrics for a new album prior to their appearance at the 1999 Ozzfest. However, every three to four months the band was distracted by commitments to Ozzfest, and worldwide "Tattoo the Earth" tour with Slipknot. Guitarist Jeff Hanneman later admitted "that was the last break. Then we got our shit together." The band's longtime producer, Rick Rubin, was too busy to work with Slayer, and felt "burned out"—unable to create intense music. Araya and King had similar feelings about Rubin, and King remarked he "wanted to work with someone into the heavy-music scene, and Rubin's not anymore. I wanted somebody who knows what's hot, knows what's selling, knows the new techniques, and will keep me on my toes." Rubin recommended two producers although the first producer was not going to work out personality-wise with Hanneman. The band was pleased with producer candidate Matt Hyde's work on "Bloodline" and hired him to produce the entire album.

God Hates Us All was to be recorded in a Hollywood studio; however, the band relocated to Vancouver, British Columbia due to the availability of cheaper studio time. Hyde recommended a studio to the band—The Warehouse Studio (owned by Bryan Adams) as he had previously worked there. The studio was altered to make it "feel like home" for Slayer. This consisted of adding incense burners, candles, dimmed lights and pornography on the walls. Two banner flags of two middle fingers were also hung up. Vocalist Tom Araya says: "that was basically the attitude of Slayer in the studio. We had a red devil head on one of the speakers. We had a skull on another. That's the kind of shit we put up--spooky stuff that makes you feel at home."

Hyde used the digital audio workstation Pro Tools during the engineering, production, and audio mixing stages of the album. Slayer wanted to keep the use of computer effects to a minimum—only to include a small amount of delay and distortion. As with previous recordings, the drum tracks were recorded first. Drummer Paul Bostaph follows a simple rule suggested by Rubin when in the studio: "The perfect take is the one that felt like it was going to fall apart but never did." Seven-string guitars were used on the tracks "Scarstruck" and "Here Comes the Pain," the first time Slayer had done so. Guitarist King decided to borrow a seven-string guitar from the B.C. Rich guitar company (manufacturer of his signature model, the KKV.) After writing one song King ordered a seven string with the thought that: "there's no point having one tuning for just one song." So he wrote another, going on to comment: "you don't have to be good to make up a seven-string riff."

The album features two songs on seven string guitars, four songs with guitars tuned to Drop-B and all other songs in C# Standard.

God Hates Us All explores themes such as religion, murder, revenge, and self-control. King wrote a majority of the lyrics, which he based on "street" subjects which everyone could relate to, rather than "Satan this," "Satan that," and "the usual Dungeons & Dragons shit" from the band's previous records. King told Guitar World:

I definitely wanted to put more realism in it, more depth. God Hates Us All isn't an anti-Christian line as much as it's an idea I think a lot of people can relate to on a daily basis. One day you're living your life, and then you're hit by a car or your dog dies, so you feel like, "God really hates me today."