- Jan 16 Jared Slingerland, Canadian rock guitarist and electronic musician, born in Kelowna, British Columbia
- Jan 17 Calvin Harris, Scottish DJ, singer-songwriter and producer (We Found Love), born in Dumfries, Scotland
- Jan 18 Benji Schwimmer, American dancer, born in Newport Beach, California
- Jan 18 Maarja Kivi, Estonian singer, born in Tallinn, Estonia
- Jan 18 Kristy Lee Cook, American country singer (American Idol season 7), born in Seattle, Washington
- Jan 20 Toni Gonzaga, Filipino singer and actress, born in Rizal, Philippines
- Jan 24 Witold Kiełtyka, Polish drummer (Decapitated), born in Krosno, Poland (d. 2007)
About January 1984
How Old? 37 years old
Generation: Millennial
Leap Year: Yes