Chelsea have played Southern United 1 times in competitive football, winning 1, drawing 0 and losing 0, first meeting on 28 Oct 1905 and most recently on 28 Oct 1905. Every meeting is listed below.
| Date | Season | Competition | Venue | Opponent | Score | Scorers | Att |
|---|---|---|---|---|---|---|---|
| 28 Oct 1905 | 1905–06 | FA Cup | A | Southern United | 1–0 | Tommy McDermott 30 | 7,000 |