Music
* Justin Bieber: Canadian singer-songwriter
* Justin Timberlake: American singer, songwriter, actor, and record producer
* Justin Hawkins: British singer-songwriter, guitarist, and lead vocalist of The Darkness
* Justin Vernon: American singer-songwriter, record producer, and multi-instrumentalist, known for his work with Bon Iver
* Justin Townes Earle: American singer-songwriter
* Justin Chancellor: British bassist of the band Tool
* Justin Meldal-Johnsen: American bass player and record producer
Acting
* Justin Theroux: American actor, screenwriter, and film producer
* Justin Chatwin: Canadian actor
* Justin Long: American actor
* Justin Hartley: American actor
* Justin Chambers: American actor
* Justin Roiland: American animator, voice actor, and producer (known for Rick and Morty)
* Justin Baldoni: American actor, director, and producer
Sports
* Justin Tuck: Former American football defensive end
* Justin Morneau: Former Canadian professional baseball player
* Justin Rose: English professional golfer
* Justin Verlander: American professional baseball pitcher
* Justin Thomas: American professional golfer
* Justin Gaethje: American mixed martial artist
Other
* Justin Trudeau: Prime Minister of Canada
* Justin Baldoni: American actor, director, and producer (also listed above)
* Justin Guarini: American singer, actor, and television personality (known for American Idol)
* Justin Smith: American journalist
* Justin Williams: American professional hockey player
This list is not exhaustive, and there are many other famous people named Justin. This is just a sampling of some of the most notable individuals.