The Margaret River Pro 2019 was the fourth event of the Men's Championship Tour in the 2019 World Surf League.

It took place from 29 May to 4 June in Margaret River, Western Australia, and was contested by 36 surfers.

[1] In the final, Hawaii's John John Florence defeated American Kolohe Andino to win the seventh Championship Tour event of his career.

The top two surfers in each heat advance directly to the Round of 32, while the lowest-placed surfer in each heat enters the Elimination Round.

From the Round of 32 onwards, the competition follows a single elimination format, with the winner of each head-to-head heat advancing to the next round and the loser being eliminated.