"Karma" is a song by the American singer-songwriter Taylor Swift from her tenth studio album, Midnights (2022). Swift wrote and produced the song with Jack Antonoff, Sounwave, and Keanu Beats, while Jahaan Sweet co-produced it. Republic Records released the song to US radio on May 1, 2023, as the third single from Midnights. A remix, featuring rapper Ice Spice, was released on May 26, 2023, as part of an extended edition of Midnights.

In the lyrics of "Karma", Swift proclaims how her "good karma" brought her good things in life, as opposed to her detractors. Musically, the song combines chillwave, disco, electroclash, and synth-pop with elements of techno, alternative pop, and new wave. Its production is characterized by glossy beats and quivering synthesizers. Contemporary critics regarded "Karma" as a highlight on Midnights, praising its bright production, melody, and zany lyricism.

"Karma" peaked at number six on the Billboard Global 200 and charted in the top 10 in Australia, Canada, Ireland, New Zealand, and the Philippines. In the United States, it peaked at number two on the US Billboard Hot 100 and became Swift's record-tying 10th and 11th number-one singles on the Adult Top 40 and Pop Airplay charts, respectively. The music video for "Karma" premiered on May 26, 2023, at her sixth headlining concert tour, the Eras Tour (2023–2024), in East Rutherford, New Jersey, and was released to YouTube the following day. The high fantasy video, written and directed by Swift, features her and Ice Spice as cosmic, celestial entities. "Karma" was included on the set list of the Eras Tour as the closing song. At the 66th Annual Grammy Awards, the remix received a nomination for Best Pop Duo/Group Performance.