NJPW World Tag League 2019 - Night 12 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on December 1, 2019 in Ōtsu at the Shiga Prefectural Gymnasium. It was broadcast on NJPWWorld.com.
- Numbers in parentheses indicate the length of the match.
- (c) refers to the champion(s) heading into the match.
- Suzuki-gun (Lance Archer & Minoru Suzuki)  defeated Hirooki Goto & Karl Fredericks  in a World Tag League 2019 Match (10:29)
- Suzuki-gun (Taichi & Zack Sabre Jr.)  defeated BULLET CLUB (Bad Luck Fale & Chase Owens)  in a World Tag League 2019 Match (8:44)
- Jeff Cobb & Mikey Nicholls  defeated Togi Makabe & Tomoaki Honma  in a World Tag League 2019 Match (9:49)
- Colt Cabana & Toru Yano  defeated El Terrible & Shingo Takagi  in a World Tag League 2019 Match (9:15)
- Los Ingobernables de Japon (EVIL & SANADA)  defeated Hiroshi Tanahashi & Toa Henare  in a World Tag League 2019 Match (10:55)
- Jushin Thunder Liger, Kota Ibushi & Tiger Mask defeated Kazuchika Okada & Roppongi 3K (SHO & YOH) (11:11)
- CHAOS (Tomohiro Ishii & YOSHI-HASHI)  defeated BULLET CLUB (KENTA & Yujiro Takahashi)  in a World Tag League 2019 Match (12:46)
- Guerrillas Of Destiny (Tama Tonga & Tanga Loa) (w/Jado)  defeated David Finlay & Juice Robinson  in a World Tag League 2019 Match (14:01)
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