Every competitive match Millwall played in 1899–00, in Southern League — 7 matches, 3 won, 3 drawn, 1 lost, with scorers and attendances where the record holds them.
| Date | Competition | Venue | Opponent | Their season | Score | Scorers | Att |
|---|---|---|---|---|---|---|---|
| 27 Jan 1900 | FA Cup | A | Jarrow | 2–0 | |||
| 17 Feb 1900 | FA Cup | A | Queens Park Rangers | Queens Park Rangers 1899–00 | 2–0 | Gettins 65, Gettins 85 | |
| 24 Feb 1900 | FA Cup | H | Aston Villa | Aston Villa 1899–00 | 1–1 | ||
| 28 Feb 1900 | FA Cup | A | Aston Villa | Aston Villa 1899–00 | 0–0 | ||
| 5 Mar 1900 | FA Cup | H | Aston Villa | Aston Villa 1899–00 | 2–1 | ||
| 24 Mar 1900 | FA Cup | N | Southampton | Southampton 1899–00 | 0–0 | 34,760 | |
| 28 Mar 1900 | FA Cup | N | Southampton | Southampton 1899–00 | 0–3 | 10,000 |
2 of the goals in this season carry a named scorer.
All 121 Millwall seasons · Millwall head-to-head records · Millwall players