- Sep 3 Iman Vellani, Pakistani-Canadian actress (Ms Marvel), born in Karachi, Pakistan
- Sep 5 Nils Einár Grönberg, Swedish rapper ("Första klass"; "Katten i trakten"), born in Stockholm, Sweden (d. 2021)
- Sep 6 Asher Angel, American actor (Andi Mack; Shazam!), born in Phoenix, Arizona
- Sep 6 Leylah Fernandez, Canadian tennis player (US Open 2021 runner-up), born in Montreal, Quebec
- Sep 8 Gaten Matarazzo, American actor (Stranger Things), born in Little Egg Harbor Township, New Jersey
Jenna Ortega (21 years old)
Sep 27 American actress and scream queen (The Fallout, Wednesday), born in Coachella Valley, California
Maddie Ziegler (21 years old)
Sep 30 American dancer, actress and model, born in Pittsburgh, Pennsylvania
About September 2002
How Old? 21 years old
Generation: Generation Z
Leap Year: No