"Panini" is a song by American rapper Lil Nas X from his second EP 7 (2019). It was released as his second single through Columbia Records on June 20, 2019. "Panini" was written by Lil Nas X himself, alongside production duo Take a Daytrip (consisting of Denzel Baptiste and David Biral) and co-producer Dot da Genius. Late singer and Nirvana frontman Kurt Cobain is also credited as a songwriter, due to the chorus containing an interpolation of the band's song "In Bloom", from their second studio album, Nevermind (1991). A remix featuring a guest appearance from American rapper DaBaby was released on September 13, 2019.

Upon its release, the song was positively received by music critics. Commercially, it charted number 5 on the US Billboard Hot 100 and number 2 on the Hot R&B/Hip-Hop Songs chart, and peaked at number 1 on the US Billboard Rhythmic chart.. The song also charted within the top 10 of four US charts and charts in Belgium, Canada, Greece, Latvia, and Lithuania. Mike Diva directed the "Panini" music video, starring Skai Jackson. Released on the 5th of September, 2019, it features her trying to outrun Lil Nas X and choreographed robots in a futuristic setting.

"Panini" was released by Columbia Records as Lil Nas X's second single on June 20, 2019, one day before the release of 7. Multiple music publications wrote that the chorus of the song contains an interpolation of "In Bloom", released on the 1991 album Nevermind by Nirvana and written by frontman Kurt Cobain. Lil Nas X, however, stated that the similarity between the two songs' melodies was unintentional, as he was not introduced to the band's music until after recording "Panini". Nevertheless, he later thanked Cobain's daughter, Frances Bean Cobain, for being able to interpolate "In Bloom".

"Panini" is named after the fictional cabbit bear hybrid of the same name—a character from the animated television series Chowder with the character herself being named after the Panini sandwich. It is composed in the key of F minor and employs common time meter. The synth-driven ostinato simulates the timbre of a brass instrument and implies a v-VI harmonic progression with the tonic chord momentarily bridging the other two and effectively behaving as a passing tone; a similar approach is likewise found in Toto's hit "Africa".^{[citation needed]}

Beatriz da Costa of Vibe said the track felt like "a distant cousin to Travis Scott's tasty hits", and called the track "short and enjoyable". Rosalind Faulkner of NPR said that the track and Lil Nas X proved that "he can be more than a one-hit wonder."

In the United States, the song would hit number 5 on the Billboard Hot 100, number 10 on the Dance/Mix Show Airplay charts, Hot R&B/Hip-Hop Songs chart, number 14 on the R&B/Hip-Hop Airplay charts, number 6 on the Pop Airplay charts, number 2 on the Rolling Stone Top 100, and number 1 on the Rhythmic charts. By the end of 2019, the song was at number 40 on the Billboard Hot 100, number 20 on the Hot R&B/Hip-Hop Airplay charts, number 28 on the Rhythmic charts, and number 23 on the Rolling Stone Top 100. B the end of 2020, the song was at number 71 on the Billboard Hot 100, number 52 on the Hot R&B/Hip-Hop charts, and number 37 on the Mainstream Top 40 charts. The song was also certified 7× platinum by the Recording Industry Association of America (RIAA).

In the United Kingdom, the song hit number 21 on the UK singles chart. The song was also certified platinum by the British Phonographic Industry (BPI). In Australia, the song hit number 15 on the ARIA Charts and was certified platinum by the Australian Recording Industry Association (ARIA). In Canada, the song hit number 8 on the Canadian Hot 100 and was certified 4× platinum by Music Canada (MC). In Denmark, the song hit number 28 on the Hitlisten charts and was certified gold by IFPI Danmark (IFPI DEN). In France, the song hit number 93 on the SNEP charts and was certified Gold by the SNEP organization. In Ireland, the song hit number 18 on the Irish Singles Chart. In Norway, the song hit number 26 on the VG-lista charts. The song was also certified 2× platinum by IFPI Norge (IFPI NOR). In New Zealand, the song would hit number 14 on the Official Aotearoa Music Charts and would be certified 8× platinum by Recorded Music NZ (RMNZ). In Switzerland, the song hit number 43 on the Swiss Hitparade charts and was certified gold by IFPI Switzerland (IFPI SWI).

Mike Diva directed the music video for "Panini" starring Skai Jackson. It premiered on September 5, 2019. The video features her trying to outrun Lil Nas X and choreographed robots in a futuristic Tokyo setting. It makes use of several lights, holograms and advertisements; along with floating billboards and flying cars.