Northern Ireland Open Qualifier 2019

The 2019 Northern Ireland Open (officially the 2019 19.com Northern Ireland Open) was a professional snooker tournament that took place from 11 to 17 November 2019 at the Waterfront Hall in Belfast, Northern Ireland. The fourth edition of the Northern Ireland Open, it was the sixth ranking event of the 2019–20 snooker season, the second tournament of the Home Nations Series. Featuring a prize fund of £405,000, the winner received £70,000. The event was broadcast on Eurosport and Quest domestically and was sponsored by betting company 19.com.

The defending champion was Judd Trump, who had defeated Ronnie O'Sullivan 9–7 in the 2018 final. The pair both reached the final in 2019, with Trump successfully defending the title, defeating O'Sullivan by the same scoreline. Stuart Bingham scored the highest break of the tournament, compiling a maximum break in the first frame of his first round match with Lu Ning, the sixth of his career.