The 2019–20 Biathlon IBU Cup was a multi-race tournament over a season of biathlon, organised by the International Biathlon Union.

IBU Cup is the second-rank competition in biathlon after the Biathlon World Cup.

The season started on 25 November 2019 in Sjusjøen, Norway and ended on 8 March 2020 in Minsk-Raubichi, Belarus.

The defending overall champions from the 2018–19 Biathlon IBU Cup were Anton Babikov and Victoria Slivko from Russia.

Below is the IBU Cup calendar for the 2019–20 season.