The Biathlon World Championships 2019 took place in Östersund, Sweden, from 6 to 17 March 2019.

There were a total of 12 competitions: sprint, pursuit, individual, mass start, and relay races for men and women, and two mixed relay races.

The single mixed relay was on the program of the World Championships for the first time.

All the events during this championships also counted for the 2018–19 Biathlon World Cup season.

[1] This was third time when World Championships was held in Östersund; the town had previously hosted the event in 1970 and 2008.