The Asia/Oceania Zone was the unique zone within Group 4 of the regional Davis Cup competition in 2023. The zone's competition was held in round robin format in Antalya, Turkey from 18 to 21 October 2023.
Format: Round-robin basis. Two pools of four teams and nations will play each team once in their pool. Nations finishing in the top two of each pool will enter promotional play-offs, with the first of Pool A facing the second of Pool B and the first of Pool B facing the second of Pool A, and the two winners will be promoted to Asia/Oceania Zone Group III in 2024.
Nations finishing in the bottom two of each pool will enter relegation play-offs, with the third of Pool A facing the fourth of Pool B and the third of Pool B facing the fourth of Pool A, and the two lost teams will be relegated to Asia/Oceania Zone Group V in 2024.
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-team ties, head-to-head records; 4. in three-team ties, (a) percentage of sets won (head-to-head records if two teams remain tied), then (b) percentage of games won (head-to-head records if two teams remain tied), then (c) Davis Cup rankings.