The Billabong Pipe Masters 2019 was the 11th and final event of the Men's Championship Tour in the 2019 World Surf League.

It took place from 9 to 19 December at the Banzai Pipeline in Oahu, Hawaii, and was contested by 36 surfers.

[1] In an all-Brazilian final, Italo Ferreira defeated Gabriel Medina to win the sixth Championship Tour event of his career.

The victory also secured a first World Surf League championship for Ferreira.

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.