The Lost Boy Dave Pelzer

• Lostboy, stage name of British producer and songwriter Peter Rycroft
• Lost Boys (band), a 1989 band formed by Steven van Zandt
• Lost Boyz, a 1993 hip-hop group from New York

Albums

• Lost Boys (album), a 1984 studio album by The Flying Pickets
• The Lost Boys (soundtrack), from the 1987 comedy/horror film
• Lostboy! AKA Jim Kerr, a 2010 rock album by Jim Kerr
• Lost Boy (album), a 2010 album by the American metalcore band
• The Lost Boy (album), a 2019 studio album by YBN Cordae

Songs

• "Lost Boys", a song by The 69 Eyes from the 2004 album Devils
• "Lost Boys", a song by MGK and Trippie Redd from the 2024 EP Genre: Sadboy
• "Lost Boys", a song by amazarashi from the 2022 album Nanagousen Lost Boys
• "Lost Boys", a song by Death Grips from the 2012 album The Money Store
• "Lost Boy", a song by 5 Seconds of Summer from the Australian version of their 2014 self-titled album
• "Lost Boy", a song by Jaden Smith from the 2017 album Syre
• "Lost Boy", a song by Relient K from the 2013 album Collapsible Lung
• "Lost Boy" (Ruth B song), a 2015 single
• "Lost Boy", a song by Troye Sivan from the 2015 album Blue Neighbourhood
• "Lost Boy", a song by Whitechapel from the 2021 album Kin