A complete record of competitive matches played between the two teams
| Millwall (34) | Cardiff City (34) | |||||
|---|---|---|---|---|---|---|
| Results | Total | % | Results | Total | % | |
| Millwall | 14 | 4.76 | Cardiff City | 14 | 4.76 | |
| Cardiff City | 7 | 2.38 | Millwall | 7 | 2.38 | |
| Draws | 13 | 4.42 | Draws | 13 | 4.42 | |
| Goals | Total | Av.pg | Goals | Total | Av.pg | |
| Millwall | 47 | 1.38 | Cardiff City | 52 | 1.53 | |
| Cardiff City | 36 | 1.06 | Millwall | 35 | 1.03 | |
| Records | |||||
|---|---|---|---|---|---|
| Highest Aggregate | 8 | Cardiff City | 4 - 4 | Millwall | 1930/1931 |
| Highest Millwall score: | 6 | Cardiff City | 6 - 0 | Millwall | 1947/1948 |
| Highest Cardiff City score: | 4 | Cardiff City | 4 - 0 | Millwall | 1982/1983 |
| Season | Date | Home | Score | Away | Competition |
|---|---|---|---|---|---|
| 2019/2020 | Tue 22 Oct | Millwall | 2 - 2 | Cardiff City | League |
| 2017/2018 | Fri 09 Feb | Millwall | 1 - 1 | Cardiff City | League |
| Sat 28 Oct | Cardiff City | 0 - 0 | Millwall | League | |
| 1929/1930 | Sat 01 Aug | Cardiff City | 3 - 1 | Millwall | League |
| 1930/1931 | Sat 01 Aug | Cardiff City | 4 - 4 | Millwall | League |
| 1934/1935 | Sat 01 Aug | Cardiff City | 3 - 1 | Millwall | League |
| 1935/1936 | Sat 01 Aug | Cardiff City | 3 - 1 | Millwall | League |
| 1929/1930 | Sat 01 Aug | Millwall | 2 - 0 | Cardiff City | League |
| 1930/1931 | Sat 01 Aug | Millwall | 0 - 0 | Cardiff City | League |
| 1934/1935 | Sat 01 Aug | Millwall | 2 - 2 | Cardiff City | League |
| 1935/1936 | Sat 01 Aug | Millwall | 2 - 4 | Cardiff City | League |
| 2014/2015 | Sat 18 Apr | Cardiff City | 0 - 0 | Millwall | League |
| Sat 25 Oct | Millwall | 1 - 0 | Cardiff City | League | |
| 2012/2013 | Sat 29 Dec | Cardiff City | 1 - 0 | Millwall | League |
| Tue 18 Sep | Millwall | 0 - 2 | Cardiff City | League | |
| 2011/2012 | Sat 31 Mar | Cardiff City | 0 - 0 | Millwall | League |
| Sat 10 Dec | Millwall | 0 - 0 | Cardiff City | League | |
| 2010/2011 | Sat 19 Mar | Millwall | 3 - 3 | Cardiff City | League |
| Sat 25 Sep | Cardiff City | 2 - 1 | Millwall | League | |
| 2005/2006 | Tue 31 Jan | Cardiff City | 1 - 1 | Millwall | League |
| Sat 24 Sep | Millwall | 0 - 0 | Cardiff City | League | |
| 2004/2005 | Tue 22 Feb | Cardiff City | 0 - 1 | Millwall | League |
| Sat 23 Oct | Millwall | 2 - 2 | Cardiff City | League | |
| 2003/2004 | Wed 07 Apr | Millwall | 0 - 0 | Cardiff City | League |
| Sat 20 Dec | Cardiff City | 1 - 3 | Millwall | League | |
| 2001/2002 | Tue 21 Aug | Millwall | 2 - 1 | Cardiff City | League Cup |
| 1999/2000 | Sat 04 Dec | Millwall | 2 - 0 | Cardiff City | League |
| Sat 07 Aug | Cardiff City | 1 - 1 | Millwall | League | |
| 1998/1999 | Wed 09 Dec | Millwall | 2 - 0 | Cardiff City | (Assc.Mmbrs.) |
| 1997/1998 | Tue 09 Dec | Cardiff City | 0 - 2 | Millwall | (Assc.Mmbrs.) |
| 1986/1987 | Mon 26 Jan | Cardiff City | 1 - 0 | Millwall | F.A. Cup |
| Tue 20 Jan | Cardiff City | 2 - 2 | Millwall | F.A. Cup | |
| Sat 10 Jan | Millwall | 0 - 0 | Cardiff City | F.A. Cup | |
| 1982/1983 | Tue 01 Feb | Cardiff City | 3 - 0 | Millwall | League |
| Sun 05 Sep | Millwall | 0 - 4 | Cardiff City | League | |
| 1978/1979 | Sat 07 Apr | Cardiff City | 2 - 1 | Millwall | League |
| Sat 02 Dec | Millwall | 2 - 0 | Cardiff City | League | |
| 1977/1978 | Sat 25 Mar | Millwall | 1 - 1 | Cardiff City | League |
| Wed 28 Dec | Cardiff City | 4 - 1 | Millwall | League | |
| 1976/1977 | Sat 05 Mar | Millwall | 0 - 2 | Cardiff City | League |
| Fri 24 Sep | Cardiff City | 0 - 0 | Millwall | League | |
| 1975/1976 | Sat 27 Mar | Cardiff City | 0 - 0 | Millwall | League |
| Sat 06 Dec | Millwall | 1 - 3 | Cardiff City | League | |
| 1974/1975 | Fri 14 Feb | Cardiff City | 0 - 1 | Millwall | League |
| Sat 25 Jan | Millwall | 5 - 1 | Cardiff City | League | |
| 1973/1974 | Sat 23 Mar | Cardiff City | 1 - 3 | Millwall | League |
| Sat 10 Nov | Millwall | 2 - 0 | Cardiff City | League | |
| 1972/1973 | Sat 28 Apr | Millwall | 1 - 1 | Cardiff City | League |
| Wed 30 Aug | Cardiff City | 1 - 0 | Millwall | League | |
| 1971/1972 | Sat 11 Mar | Millwall | 1 - 1 | Cardiff City | League |
| Sat 09 Oct | Cardiff City | 1 - 2 | Millwall | League | |
| 1970/1971 | Sat 19 Dec | Millwall | 2 - 1 | Cardiff City | League |
| Sat 22 Aug | Cardiff City | 2 - 2 | Millwall | League | |
| 1969/1970 | Wed 15 Apr | Cardiff City | 0 - 0 | Millwall | League |
| Mon 15 Dec | Millwall | 1 - 2 | Cardiff City | League | |
| 1968/1969 | Sat 14 Dec | Cardiff City | 2 - 0 | Millwall | League |
| Sat 12 Oct | Millwall | 2 - 0 | Cardiff City | League | |
| 1967/1968 | Sat 30 Mar | Millwall | 3 - 1 | Cardiff City | League |
| Tue 05 Dec | Cardiff City | 2 - 2 | Millwall | League | |
| 1966/1967 | Sat 04 Mar | Cardiff City | 1 - 1 | Millwall | League |
| Sat 29 Oct | Millwall | 1 - 0 | Cardiff City | League | |
| 1947/1948 | Sat 03 Jan | Cardiff City | 6 - 0 | Millwall | League |
| Sat 30 Aug | Millwall | 0 - 1 | Cardiff City | League | |
| 1937/1938 | Sat 16 Apr | Millwall | 1 - 0 | Cardiff City | League |
| Sat 04 Dec | Cardiff City | 3 - 2 | Millwall | League | |
| 1936/1937 | Mon 12 Apr | Cardiff City | 0 - 1 | Millwall | League |
| Sat 03 Apr | Millwall | 3 - 1 | Cardiff City | League |