2020 Davis Cup World Group I

The 2020 Davis Cup World Group I will be held on 5–6 March 2021 and 17–19 September 2021. The twelve winning teams from the World Group I will play at the Qualifying round and the twelve losing teams will play at the World Group I Play-offs in 2021.
Teams.
Twenty-four teams will participate in the World Group I, in series decided on a home and away basis. The seedings are based on the Nations Ranking of 9 March.
These twenty-four teams are:
The eight highest-ranked (as at 20 September 2021) winners of the World Group I ties will automatically progress to the 2022 Qualifiers. The four lowest-ranked winners will take part in an additional knock-out tie in November 2021, with the two winners progressing to the 2022 Qualifiers and two losers contesting the 2022 World Group I Play-offs. The losing nations from the World Group I ties will compete in the World Group I Play-Offs in 2022.
"#: Nations Ranking as of 9 March 2020.
Seeded teams
Unseeded teams