- Jan 1 Eden Riegel, American actress (All My Children), born in Washington, D.C.
- Jan 1 Jonas Armstrong, Irish-born British actor (Robin Hood), born in Dublin, Ireland
- Jan 5 Brooklyn Sudano, American actress, born in Los Angeles, California
- Jan 6 Jérémie Renier, Belgian actor, born in Brussels, Belgium
- Jan 6 Rinko Kikuchi, Japanese actress, born in Kanagawa Prefecture, Japan
- Jan 13 Shad Gaspard, American professional wrestler, bodyguard, and actor, born in Brooklyn, New York (d. 2020)
- Jan 17 Ray J. [William Ray Norwood Jr.], American singer and actor (Everything You Want), born in McComb, Mississippi
- Jan 17 Scott Mechlowicz, American actor, born in New York
- Jan 18 Kang Dong-won, South Korean model and actor, born in Busan, South Korea
- Jan 19 Elizabeth "Bitsie" Tulloch, American actress (Grimm; Superman & Lois), born in San Diego, California
- Jan 20 Crystal Lowe, Canadian actress and model, born in Vancouver, British Columbia
- Jan 21 Andy Lee [Lee Sun-ho], Korean K-pop singer (Shinhwa), and actor, born in Seoul, South Korea
- Jan 21 Gillian Chung [Yan-tung], Hong Kong Canto-pop singer (Twins), and actress (Beyond Our Ken), born in British Hong Kong
- Jan 21 Izabella Miko, Polish-born actress and model
- Jan 22 Beverley Mitchell, American actress, born in Arcadia, California
- Jan 22 O-T Fagbenle, English stage and screen actor (The Handmaid’s Tale, The First Lady), born in London
- Jan 22 Willa Ford [Amanda Lee Williford], American pop singer, and actress, born in Ruskin, Florida
Elijah Wood (43 years old)
Jan 28 American actor (The Good Son, The Lord of the Rings), born in Cedar Rapids, Iowa
- Jan 29 Darío Lopilato, Argentine actor, born in Buenos Aires, Argentina
- Jan 29 Tenoch Huerta, Mexican actor (Black Panther: Wakanda Forever), born in Ecatepec de Morelos, Mexico
Justin Timberlake (43 years old)
Jan 31 American singer-songwriter ("Can't Stop The Feeling!"; "Sexyback"), and actor (Friends With Benefits), born in Memphis, Tennessee
- Jan 31 Sergio D. Acosta, American Chicano Filmmaker, born in San Jose, California
About January 1981
How Old? 43 years old
Generation: Millennial
Leap Year: No
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