The Asia/Oceania Zone was the unique zone within Group 5 of the regional Davis Cup competition in 2023. The zone's competition was held in round robin format in Isa Town, Bahrain from 25 to 28 October 2023.
Location: Bahrain Tennis Federation, Isa Town, Bahrain (Hard)
Format: Round-robin basis. Three pools of three teams and one pool of four teams and nations will play each team once in their pool. Nations finishing first of each pool will enter promotional play-offs, with the first of Pool A facing the first of Pool D and the first of Pool B facing the first of Pool C, and the two winners will be promoted to Asia/Oceania Zone Group IV 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.