"Jack and Jill" is a 1978 hit song by R&B vocal group Raydio. It was the first single from their eponymous debut album Raydio, and became an international Top 10 hit. It reached number eight on the U.S. Billboard Hot 100 and number six on the Cashbox Top 100. In Canada it reached number five, and number four in Australia and also made the top 20 in UK. It was the first of five U.S. Top 10 singles by Ray Parker, Jr. and/or Raydio.

The song describes how "Jack" is lonely and so, in spite of his good intentions, wanders down the hill to find love elsewhere after being neglected by "Jill," who is seldom home.

In 1981, "A Woman Needs Love (Just Like You Do)" became a hit as an answer song to "Jack And Jill." Parker wrote an antithesis from "Jill's" perspective, according to the lyrics, "By the time poor Jack returned up the hill, somebody else had been loving Jill."

In 1982 Parker recorded an extended version of the song. It was released on a later re-issue of his second solo album. In this version he did all of the vocals instead of just some of them.

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