"Human" is a song recorded by American singer-songwriter Christina Perri for her second studio album, Head or Heart (2014). The song was written by Perri and Martin Johnson, who also produced the song. It was released on November 18, 2013 as the lead single for the album. Released to generally positive reviews, "Human" has since become a Top 10 Adult Pop hit in the United States, as well as her third top 40 entry on the Billboard Hot 100. It was certified Platinum by RIAA in June 2014.

"Human" was written by Perri and Martin Johnson in April 2013, and was produced by Martin Johnson. The song was written at the end of a long session of song-writing, and originally Perri wasn't sure if the song would be in the album because she felt it was too personal, but because of the positive reactions to the song, she decided to put in the album and chose it as the lead single. The song was released on iTunes on November 18, 2013, and Perri debuted the song with a performance on The Queen Latifah Show the same day. "Human" impacted American hot adult contemporary radio on December 9, 2013.

Like previous singles "Jar of Hearts" and "Arms", "Human" is largely built around a piano melody and showcases her voice. It is a pop power ballad written in key A^b major, and features a strong build-up towards the chorus. The song features a string arrangement by notable arranger David Campbell. Critics have compared Perri's honest, heart-on-her-sleeve songwriting to that of Taylor Swift. Lyrically, "Human" uses relatable yet specific details to describe the vulnerability of being human. The verses find Perri musing the things she would do for love, yet as she sings in the chorus, "I'm only human / And I bleed when I fall down."

"Human" was acclaimed by critics. Sam Lansky of Idolator applauded the song for being "properly dramatic" in its approach, noting that Perri "[sings] her heart out over triumphant production," resulting in what he described as an "epic and radio-friendly" ballad. Amy Sciarretto of PopCrush responded positively to the confessional nature of the lyrics, as well as Perri's "angelic" voice, of which she "shows a wider range than ever" in her delivery. She rated the song 3.5 stars out of 5. Robert Copsey of Digital Spy described it as a "gothic-tinged" ballad that is "as satisfying as it comes", and rated it three stars out of five.

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