- Jan 4 Gage Munroe, Canadian actor (I Declare War), born in Toronto, Ontario
- Jan 10 Mason Mount, English footballer (England, Chelsea FC), born in Portsmouth, England
- Jan 13 Nasa Hataoka, Japanese golfer (Women's PGA C'ship 2018 runner-up), born in Ibaraki, Japan
- Jan 14 Declan Rice, English footballer (Arsenal, England), born in Kingston upon Thames, England
- Jan 18 Karan Brar, American actor (Diary of a Wimpy Kid; Bunk'd), born in Redmond, Washington
- Jan 19 Christone “Kingfish” Ingram, American blues guitarist and singer (662), born in Clarksdale, Mississippi
- Jan 29 Madison Bailey, American actress (Outer Banks), born in Kernersville, North Carolina
- Jan 30 Motaz Azaiza, Palestinian photographer of the Israeli-Hamas War in Gaza, born in Deir al-Balah, Gaza Strip [1]
About January 1999
How Old? 25 years old
Generation: Generation Z
Leap Year: No
20-29
30-39
40-49
50-59
80-89
Over 90