"Jessica" is an instrumental piece by American rock band the Allman Brothers Band, released in December 1973 as the second single from the group's fourth studio album, Brothers and Sisters (1973). Written by guitarist Dickey Betts, the song is a tribute to Gypsy jazz guitarist Django Reinhardt, in that it was designed to be played using only two fingers on the left hand.

Betts wrote the majority of "Jessica" at the band's farm in Juliette, Georgia. He named it after his daughter, Jessica Betts, who was an infant when it was released. She had bounced along to the song's rhythm, and Betts attempted to capture her attitude with its melody. He invited fellow guitarist Les Dudek over to collaborate on it, and Dudek formed the bridge. The arrangement was crafted prior to recording, which took place at Capricorn Sound Studios in Macon, Georgia.

Issued as a single following the immensely successful "Ramblin' Man", "Jessica" did not receive the same level of chart success. Despite this, it became a standard in rotations for classic rock radio stations in the following decades. Reviews have been widely positive. Many critics at the time called it a highlight of the album, and a 2006 Wall Street Journal article deemed it "a true national heirloom". It is widely known as the theme to the BBC Two motoring program Top Gear.

Songwriting always has some gray areas, because if someone plays a particular riff does that mean it's part of the song or part of the arrangement? We all contributed to the arrangement of the piece, but it was Dickey's song.

After the death of group leader Duane Allman in 1971, the Allman Brothers Band continued on, adding keyboardist Chuck Leavell. A year later when Berry Oakley also died, Lamar Williams was brought in as the bassist replacement, finishing the album Berry did not. The addition of Leavell in particular changed the band's sound and direction, which has often been considered most evident on "Jessica". Guitarist Dickey Betts wrote the song at "the Farm," a 432-acre "group hangout" in Juliette, Georgia. "I really need to have an image in my head before I can start writing an instrumental because otherwise it's too vague. I get an emotion or an idea I want to express and see what I can come up with," said Betts in 2014. "Jessica" was an attempt to write a song that could be played with just two fingers, in honor of Gypsy jazz guitarist Django Reinhardt, who played with two left fingers due to severe burns. Betts had crafted the main melody of the song but became frustrated with its direction afterward. Jessica, Betts's baby daughter, crawled into the room and began bouncing to the music. "I started playing along, trying to capture musically the way she looked bouncing around the room," said Betts, who named the song after her.

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