The women's 800 metres event at the 2019 Summer Universiade was held on 8, 9 and 10 July at the Stadio San Paolo in Naples.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |
| Catriona Bisset | Christina Hering | Docus Ajok |
Qualification: First 4 in each heat (Q) and next 4 fastest (q) qualified for the semifinals.[1]
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 4 | 2:05.13 | Q | |||
| 2 | 4 | 2:05.75 | Q | |||
| 3 | 4 | 2:06.11 | Q, PB | |||
| 4 | 5 | 2:06.13 | Q | |||
| 5 | 5 | 2:06.17 | Q | |||
| 6 | 5 | 2:06.22 | Q, SB | |||
| 7 | 5 | 2:06.29 | Q | |||
| 8 | 4 | 2:06.45 | Q | |||
| 9 | 5 | 2:06.74 | q | |||
| 10 | 3 | 2:06.77 | Q | |||
| 11 | 3 | 2:06.78 | Q | |||
| 12 | 3 | 2:06.81 | Q | |||
| 13 | 5 | 2:06.91 | q, PB | |||
| 14 | 4 | 2:07.42 | q | |||
| 15 | 2 | 2:07.66 | Q | |||
| 16 | 3 | 2:07.66 | Q | |||
| 17 | 2 | 2:07.72 | Q | |||
| 18 | 2 | 2:08.05 | Q | |||
| 19 | 2 | 2:08.16 | Q, PB | |||
| 20 | 1 | 2:08.22 | Q | |||
| 21 | 4 | 2:08.33 | q | |||
| 22 | 1 | 2:08.64 | Q | |||
| 23 | 1 | 2:08.92 | Q | |||
| 24 | 1 | 2:08.93 | Q | |||
| 25 | 1 | 2:09.26 | ||||
| 26 | 1 | 2:10.32 | ||||
| 27 | 4 | 2:11.41 | ||||
| 28 | 2 | 2:11.48 | ||||
| 29 | 3 | 2:12.06 | ||||
| 30 | 3 | 2:13.16 | ||||
| 31 | 2 | 2:13.33 | ||||
| 32 | 1 | 2:14.25 | ||||
| 33 | 5 | 2:20.15 | ||||
| 34 | 4 | 2:21.38 | PB | |||
| 35 | 5 | 2:22.83 | ||||
| 36 | 3 | 2:27.08 | ||||
| 37 | 2 | 2:40.72 | ||||
| 1 | ||||||
| 2 | ||||||
| 3 |
Qualification: First 2 in each heat (Q) and next 2 fastest (q) qualified for the final.[2]
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 2:01.45 | Q | |||
| 2 | 3 | 2:02.38 | Q, SB | |||
| 3 | 1 | 2:02.55 | Q | |||
| 4 | 1 | 2:02.65 | q | |||
| 5 | 3 | 2:02.91 | Q | |||
| 6 | 3 | 2:03.00 | q | |||
| 7 | 3 | 2:03.18 | ||||
| 8 | 2 | 2:03.36 | Q | |||
| 9 | 2 | 2:03.42 | Q | |||
| 10 | 2 | 2:03.44 | ||||
| 11 | 1 | 2:03.73 | ||||
| 12 | 3 | 2:04.23 | ||||
| 13 | 2 | 2:05.09 | ||||
| 14 | 2 | 2:06.14 | ||||
| 15 | 3 | 2:06.31 | ||||
| 16 | 2 | 2:06.36 | ||||
| 17 | 1 | 2:06.73 | ||||
| 18 | 2 | 2:07.69 | ||||
| 19 | 1 | 2:07.95 | ||||
| 20 | 3 | 2:08.31 | ||||
| 21 | 1 | 2:08.69 | PB | |||
| 22 | 3 | 2:08.98 | ||||
| 23 | 2 | 2:11.22 | ||||
| 1 |
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 2:01.20 | |||||
| 2:01.87 | |||||
| 2:02.31 | SB | ||||
| 4 | 2:02.58 | ||||
| 5 | 2:02.65 | ||||
| 6 | 2:02.71 | ||||
| 7 | 2:03.20 | ||||
| 8 | 2:04.19 |