Resurgence was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW). It was held on August 14, 2021, at The Torch at LA Coliseum in Los Angeles, California. Wrestlers from U.S. partner promotions All Elite Wrestling (AEW), Impact Wrestling, Major League Wrestling (MLW), the United Wrestling Network's Championship Wrestling from Hollywood (CWFH), and Ring of Honor (ROH) appeared on the card.

NJPW Resurgence (2021) is currently not available on any services.