"Be My Baby" is a song written by Jeff Barry, Ellie Greenwich and Phil Spector. It was first recorded and released by American girl group The Ronettes as a single in August 1963 and later placed on their 1964 debut LP Presenting the Fabulous Ronettes featuring Veronica. Spector produced their elaborately layered recording in what is now largely considered the ultimate embodiment of his Wall of Sound production formula.

It is considered one of the best songs of the 1960s by Pitchfork Media, NME and Time. In 2004, the song was ranked 22 by Rolling Stone in its list of The 500 Greatest Songs of All Time and described as a "Rosetta stone for studio pioneers such as the Beatles and Brian Wilson," a notion supported by Allmusic who writes, "No less an authority than Brian Wilson has declared 'Be My Baby' the greatest pop record ever made—no arguments here." In 1999, it was inducted in the Grammy Hall of Fame, and in 2006, the Library of Congress honored the Ronettes' version by adding it to the United States National Recording Registry.

The song was composed by the trio of Phil Spector, Jeff Barry, and Ellie Greenwich. It features I – ii – V7 and I – vi – IV – V chord progressions.