ROH-NJPW War Of The Worlds 2019 - Night 4 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) and Ring of Honor (ROH) that took place on May 12, 2019 in Villa Park, Illinois at the Odeum Expo Center. It was broadcast on ROHWrestling.com.
- Numbers in parentheses indicate the length of the match.
- (c) refers to the champion(s) heading into the match.
- Rhett Titus defeated Rayo
- Allysin Kay (c) defeated Marti Belle to retain the NWA World Women's Championship
- Flip Gordon defeated Karl Fredericks (7:00)
- Kenny King defeated Jay Lethal in a Best Of Three Series Match #1 (15:50) [1:0]
- The Bouncers (Brian Milonas & The Beer City Bruiser) defeated Alex Coughlin & Clark Connors and Coast 2 Coast (LSG & Shaheem Ali) and The Kingdom (TK O'Ryan & Vinny Marseglia) in a Four Corner Survival Tag Team Match (9:00)
- Josh Woods defeated Maverick Boone (0:40)
- Los Ingobernables de Japón (EVIL & SANADA) defeated Satoshi Kojima & Yuji Nagata (12:46)
- Colt Cabana (c) vs. James Storm - Time Limit Draw (15:00) Cabana retains the NWA National Heavyweight Championship
- Silas Young defeated The Squid (2:00)
- Lifeblood (Mark Haskins & Tracy Williams) defeated Bully Ray & Shane Taylor by DQ (0:30)
- Hirooki Goto defeated Hikuleo (7:10)
- Lifeblood (Mark Haskins & Tracy Williams) & PJ Black defeated Shinobi Shadow Squad (Cheeseburger, Eli Isom & Ryan Nova) in a Six Man Tag Team Match (7:24)
- Jeff Cobb defeated Jay Lethal and PCO and Rush in a Four Corner Survival Match (12:30)
- The Guerrillas Of Destiny (Tama Tonga & Tanga Loa) (c) defeated The Briscoes (Jay Briscoe & Mark Briscoe) to retain the ROH World Tag Team Championship (17:17)