| Event: | Men's 50 metre backstroke |
| Competition: | 2002 Commonwealth Games |
| Venue: | Manchester Aquatics Centre |
| Dates: | 30–31 July 2002 |
| Competitors: | 33 |
| Nations: | 22 |
| Win Value: | 25.65 s |
| Gold: | Matt Welsh |
| Goldnoc: | AUS |
| Silver: | Alex Lim |
| Silvernoc: | MAS |
| Bronze: | Gerhard Zandberg |
| Bronzenoc: | RSA |
| Prev: | 1998 |
| Next: | 2006 |
The men's 50 metre backstroke event at the 2002 Commonwealth Games took place 30–31 July. The heats and the semi were held on 30 July, the final on 31 July.
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 4 | 25.65 | GR | |||
| 6 | 25.67 | ||||
| 3 | 25.89 | ||||
| 4 | 5 | 26.05 | |||
| 5 | 7 | 26.20 | |||
| 6 | 2 | 26.47 | |||
| 7 | 8 | 26.56 | |||
| 8 | 1 | 26.67 | |||
Key: WR = World record
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 4 | 25.86 | Q, GR | |||
| 2 | 1 | 4 | 25.96 | Q | |||
| 3 | 1 | 5 | 26.05 | Q | |||
| 4 | 2 | 5 | 26.20 | Q | |||
| 5 | 2 | 3 | 26.23 | Q | |||
| 6 | 2 | 2 | 26.33 | Q | |||
| 7 | 2 | 1 | 26.45 | Q | |||
| 8 | 1 | 3 | 26.49 | Q | |||
| 9 | 2 | 6 | 26.52 | ||||
| 10 | 1 | 6 | 26.54 | ||||
| 11 | 2 | 7 | 26.64 | ||||
| 12 | 1 | 2 | 26.78 | ||||
| 13 | 1 | 1 | 26.97 | ||||
| 14 | 1 | 7 | 27.12 | ||||
| 15 | 2 | 8 | 27.43 | ||||
| 16 | 1 | 8 | 27.50 |
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 5 | 4 | 26.04 | Q | |||
| 2 | 4 | 4 | 26.06 | Q | |||
| 3 | 5 | 7 | 26.14 | Q | |||
| 4 | 5 | 5 | 26.25 | Q | |||
| 5 | 3 | 4 | 26.52 | Q | |||
| 6 | 3 | 5 | 26.60 | Q | |||
| 7 | 4 | 3 | 26.65 | Q | |||
| 8 | 5 | 2 | 26.69 | Q | |||
| 9 | 5 | 3 | 26.70 | Q | |||
| 9 | 5 | 6 | 26.70 | Q | |||
| 11 | 4 | 2 | 26.75 | Q | |||
| 11 | 4 | 6 | 26.75 | Q | |||
| 13 | 4 | 7 | 26.88 | Q | |||
| 14 | 3 | 3 | 26.91 | Q | |||
| 15 | 3 | 6 | 26.98 | Q | |||
| 16 | 3 | 7 | 27.46 | Q | |||
| 17 | 4 | 1 | 27.70 | ||||
| 18 | 4 | 5 | 27.82 | ||||
| 19 | 3 | 2 | 27.99 | ||||
| 20 | 5 | 1 | 28.07 | ||||
| 21 | 3 | 1 | 28.28 | ||||
| 22 | 4 | 8 | 28.55 | ||||
| 23 | 5 | 8 | 28.97 | ||||
| 24 | 3 | 8 | 29.06 | ||||
| 25 | 2 | 7 | 29.26 | ||||
| 26 | 2 | 5 | 29.53 | ||||
| 27 | 2 | 4 | 29.59 | ||||
| 28 | 1 | 5 | 29.68 | ||||
| 29 | 1 | 4 | 30.34 | ||||
| 30 | 2 | 6 | 30.37 | ||||
| 31 | 1 | 3 | 30.52 | ||||
| 32 | 2 | 3 | 30.79 | ||||
| 33 | 2 | 2 | 31.15 |