- Jan 4 Gage Munroe, Canadian actor (I Declare War), born in Toronto, Ontario
- Jan 13 Nasa Hataoka, Japanese golfer (Women's PGA C'ship 2018 runner-up), born in Ibaraki, Japan
- Jan 18 Karan Brar, American actor (Diary of a Wimpy Kid; Bunk'd), born in Redmond, Washington
About January 1999
How Old? 22 years old
Generation: Generation Z
Leap Year: No