Not the Boy Next Door is the seventh and penultimate studio album by Australian singer and songwriter Peter Allen released in March 1983.

[3] Its four singles—"Not the Boy Next Door", "You Haven't Heard the Last of Me", "Once Before I Go" and "You and Me (We Wanted It All)"—all reached the Billboard Adult Contemporary chart.

The same year, "Arthur's Theme (Best That You Can Do)", which he co-wrote, topped the charts and won an Academy Award for Best Original Song and Golden Globe Award for Best Original Song.

In 1982, Allen's first greatest hits album was released, ending his contract with A&M Records.

William Ruhlmann from AllMusic said of the album: "The nine songs on Not the Boy Next Door seemed to have been carefully fashioned to fit into current radio formats, but perhaps they had been tailored too well", adding the songs echoed the early 1980s dance-pop and pop/rock that never quite worked.