"Baby I'm Yours" is a song written by Van McCoy, which was a hit in 1965 for Barbara Lewis, the original recording. The song was featured in the 1995 film The Bridges of Madison County and was included on the soundtrack album. It was also featured in the TV-films The Midnight Hour (1985) and An American Crime (2007).

Barbara Lewis first recorded "Baby I'm Yours" in a January 8, 1965 Atlantic Recording Studios (NYC) session directed by Bert Berns with the producer credit assigned to Lewis's manager Ollie McLaughlin. The session for the track featured George "Teacho" Wiltshire conducting his orchestra, whose personnel included Clark Terry and Dud Bascomb (trumpets), Jimmy Cleveland and Tony Studd (trombones), Frank Haywood Henry (baritone sax), Charlie Brown (tenor sax), Paul Griffin (piano), Bill Suyker (guitar), Jimmy Lewis (bass), Gary Chester (drums), and Artie Butler (percussion/ handclaps); the harmony background vocals on the track were provided by the song's composer, Van McCoy, singing with Kendra Spotswood

Barbara Lewis has stated that Van McCoy wrote "Baby I'm Yours" specifically for her. When she first heard the demo for "Baby I'm Yours" Lewis disliked the song — she has suggested that she actually was daunted by the high quality of the vocal, by McCoy himself, on the demo — and at the original session "I didn't really put 100% into my vocal performance" hoping that Atlantic would shelve the track as sub-par. "Ollie [McLaughlin] told me 'Barbara, we're gonna have to go back to Detroit and dub you in. We gotta do your vocals over. You're just not giving like you should on the song.' We did several takes [in Detroit] and he was wondering 'How am I going to get this girl to give? She's so hard-headed.' He said 'You know, Barbara, Karen can sing that song better than you.' That was his little daughter. And it pissed me off. I did one more take, and that was the take that they selected." It has also been reported that Lewis dubbed her vocal in a Chicago studio.

Released in April 1965, Lewis' "Baby I'm Yours" enjoyed staggered regional success exemplified by the single reaching #1 in Detroit as early as June 1965 and peaking at #4 in Chicago that August: the national peak of the single was #11 achieved on the Hot 100 in Billboard dated August 21, 1965. "Baby I'm Yours" afforded Lewis a #5 R&B chart hit.

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