| Event: | Women's 800 metre freestyle |
| Games: | 2018 |
| Venue: | Gold Coast Aquatic Centre |
| Dates: | 8 April (heats) 9 April (final) |
| Competitors: | 10 |
| Nations: | 6 |
| Win Value: | 8:20.02 |
| Gold: | Ariarne Titmus |
| Goldcga: | AUS |
| Silver: | Jessica Ashwood |
| Silvercga: | AUS |
| Bronze: | Kiah Melverton |
| Bronzecga: | AUS |
| Prev: | 2014 |
| Next: | 2022 |
The women's 800 metre freestyle event at the 2018 Commonwealth Games took place on 8 and 9 April at the Gold Coast Aquatic Centre.
Prior to this competition, the existing world, Commonwealth and Games records were as follows:
The schedule is as follows:[1]
All times are Australian Eastern Standard Time (UTC+10)
| Date | Time | Round | |
|---|---|---|---|
| Sunday 8 April 2018 | 12:00 | Heats | |
| Monday 9 April 2018 | 19:43 | Final |
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 8:29.30 | Q | ||
| 2 | 2 | 4 | 8:32.78 | Q | ||
| 3 | 1 | 3 | 8:35.62 | Q | ||
| 4 | 2 | 5 | 8:36.52 | Q | ||
| 5 | 1 | 5 | 8:39.57 | Q | ||
| 6 | 2 | 3 | 8:42.01 | Q | ||
| 7 | 2 | 6 | 8:43.89 | Q | ||
| 8 | 1 | 6 | 8:49.16 | Q | ||
| 9 | 2 | 2 | 9:02.88 | |||
| 10 | 1 | 2 | ||||
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 5 | 8:20.02 | |||||
| 4 | 8:27.60 | |||||
| 7 | 8:28.59 | |||||
| 4 | 2 | 8:29.05 | ||||
| 5 | 3 | 8:32.65 | ||||
| 6 | 6 | 8:37.45 | ||||
| 7 | 1 | 8:43.94 | ||||
| 8 | 8 | 8:49.16 |