The January 2021 New Year's Smash was the inaugural New Year's Smash professional wrestling television special produced by All Elite Wrestling (AEW). The two-part event took place on January 6 and 7, 2021, at Daily's Place in Jacksonville, Florida and was broadcast on TNT as special episodes of AEW's weekly television program, Dynamite. Night 1 aired live on January 6, while Night 2 was taped on January 7 and aired on tape delay on January 13. The event was originally supposed to begin on December 30, 2020, and end on January 6, 2021, but was postponed by a week due to the death of AEW wrestler Brodie Lee; the December 30 episode was instead held as a memorial event for Lee.

AEW New Year's Smash is a professional wrestling television special produced by All Elite Wrestling (AEW). Established by the promotion in 2021, the event is held annually around New Year's as a two-part event. The original January 2021 event aired as two back-to-back special episodes of AEW's flagship program, Wednesday Night Dynamite, while the second event, which aired in December 2021, occurred during the same week, first as an episode of Dynamite, then as a special episode of Friday Night Rampage, with future events retaining this format. The Dynamite broadcast for the second event was notable for being the final Dynamite to air on TNT before the show moved to TNT's sister channel TBS; Rampage remained on TNT.