2023 Davis Cup World Group I

The 2023 Davis Cup World Group I was held from 14 to 17 September. The twelve winners from the World Group I will play at the qualifying round and the twelve losers will play at the World Group I Play-offs in 2024.

Teams
Twenty-four teams participated in the World Group I, in series decided on a home and away basis. The seedings were based on the Nations Ranking.

These twenty-four teams were:
 * 12 losing teams from the 2023 qualifying round, in February 2023
 * 12 winning teams from the 2023 World Group I play-offs, in February 2023

The 12 winning teams from the World Group I will play at the qualifying round and the 12 losing teams will play at the World Group I Play-offs in 2024.

#: Nations Ranking as of 6 February 2023.

Seeded teams
 * (#5)
 * (#14)
 * (#16)
 * (#18)
 * (#19)
 * (#22)
 * (#23)
 * (#24)
 * (#25)
 * (#26)
 * (#27)
 * (#28)

Unseeded teams
 * (#29)
 * (#30)
 * (#31)
 * (#33)
 * (#34)
 * (#35)
 * (#36)
 * (#37)
 * (#38)
 * (#39)
 * (#41)
 * (#42)