The 2019 UCI Mountain Bike World Championships was held in Mont-Sainte-Anne, Canada, from August 28 to September 1, 2019.

[1] This was the 30th edition of the most prestigious mountain bike event on the calendar, held annually since 1990, and the senior and under-23 cross-country races also functioned as a qualifier for the cross-country race at the 2020 Summer Olympics.

The following National Olympic Committees earned a quota place in the cross-country event in the 2020 Summer Olympics by virtue of high finish in either the elite senior or under 23 events.

[2]