The Asia/Oceania Zone was the unique zone within Group 3 of the regional Davis Cup competition in 2019. The zone's competition was held in round robin format in Singapore, from 26 to 29 June 2019.
Date: 26–29 June
Location: Singapore Sports Hub, Singapore (indoor hard)
Format: Round-robin basis.
| Pot | Nation | Rank1 | Seed |
|---|---|---|---|
| 1 |  Vietnam | 66 | 1 |
 Iran | 72 | 2 | |
| 2 |  Kuwait | 73 | 3 |
 Qatar | 83 | 4 | |
| 3 |  Sri Lanka | 87 | 5 |
 Syria | 92 | 6 | |
| 4 |  Malaysia | 96 | 7 |
 Singapore | 100 | 8 | |
| VIE | SRI | KUW | SGP | RR W–L | Set W–L | Game W–L | Standings | ||
| 1 | Vietnam | 3–0 | 3–0 | 2–1 | 3–0 | 17–4 (81%) | 120–63 (66%) | 1 | |
| 5 | Sri Lanka | 0–3 | 2–1 | 2–1 | 2–1 | 9–11 (45%) | 88–99 (47%) | 2 | |
| 3 | Kuwait | 0–3 | 1–2 | 2–1 | 1–2 | 7–14 (33%) | 84–110 (43%) | 3 | |
| 8 | Singapore | 1–2 | 1–2 | 1–2 | 0–3 | 9–13 (41%) | 90–110 (45%) | 4 |
| SYR | QAT | MAS | IRI | RR W–L | Set W–L | Game W–L | Standings | ||
| 6 | Syria | 3–0 | 2–1 | 3–0 | 3–0 | 17–3 (85%) | 113–61 (65%) | 1 | |
| 4 | Qatar | 0–3 | 2–1 | 2–1 | 2–1 | 10–11 (48%) | 90–92 (49%) | 2 | |
| 7 | Malaysia | 1–2 | 1–2 | 3–0 | 1–2 | 11–11 (50%) | 99–106 (48%) | 3 | |
| 2 | Iran | 0–3 | 1–2 | 0–3 | 0–3 | 3–16 (16%) | 69–112 (38%) | 4 |
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.
| Placing | A Team | Score | B Team |
|---|---|---|---|
| 1st–2nd | Vietnam | 2–0 | Syria |
| 3rd–4th | Sri Lanka | 2–1 | Qatar |
| 5th–6th | Kuwait | 2–1 | Malaysia |
| 7th–8th | Singapore | 2–1 | Iran |
 Vietnam 3 | Singapore Sports Hub, Singapore [1] 26 June Hard (i) |  Sri Lanka 0 | |||||||||||||||||||||||||||||
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 Kuwait 2 | Singapore Sports Hub, Singapore [2] 26 June Hard (i) |  Singapore 1 | |||||||||||||||||||||||||||||
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Vietnam 2 | Singapore Sports Hub, Singapore [3] 27 June Hard (i) | Singapore 1 | |||||||||||||||||||||||||||||
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Kuwait 1 | Singapore Sports Hub, Singapore [4] 27 June Hard (i) | Sri Lanka 2 | |||||||||||||||||||||||||||||
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Vietnam 3 | Singapore Sports Hub, Singapore [5] 28 June Hard (i) | Kuwait 0 | |||||||||||||||||||||||||||||
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Sri Lanka 2 | Singapore Sports Hub, Singapore [6] 28 June Hard (i) | Singapore 1 | |||||||||||||||||||||||||||||
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 Iran 0 | Singapore Sports Hub, Singapore [7] 26 June Hard (i) |  Syria 3 | |||||||||||||||||||||||||||||
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 Qatar 2 | Singapore Sports Hub, Singapore [8] 26 June Hard (i) |  Malaysia 1 | |||||||||||||||||||||||||||||
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Iran 0 | Singapore Sports Hub, Singapore [9] 27 June Hard (i) | Malaysia 3 | |||||||||||||||||||||||||||||
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Qatar 0 | Singapore Sports Hub, Singapore [10] 27 June Hard (i) | Syria 3 | |||||||||||||||||||||||||||||
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Iran 1 | Singapore Sports Hub, Singapore [11] 28 June Hard (i) | Qatar 2 | |||||||||||||||||||||||||||||
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Syria 2 | Singapore Sports Hub, Singapore [12] 28 June Hard (i) | Malaysia 1 | |||||||||||||||||||||||||||||
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Vietnam 2 | Singapore Sports Hub, Singapore [13] 29 June Hard (i) | Syria 0 | |||||||||||||||||||||||||||||
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Sri Lanka 2 | Singapore Sports Hub, Singapore [14] 29 June Hard (i) | Qatar 1 | |||||||||||||||||||||||||||||
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Kuwait 2 | Singapore Sports Hub, Singapore [15] 29 June Hard (i) | Malaysia 1 | |||||||||||||||||||||||||||||
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Singapore 2 | Singapore Sports Hub, Singapore [16] 29 June Hard (i) | Iran 1 | |||||||||||||||||||||||||||||
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