blue #
= weekly pop chart peak
| 1 | If You Don't Know Me By Now | 2 | Nov 1972 |  |
| Harold Melvin And The Blue Notes |
| 2 | If You Don't Know Me By Now | Oct 1975 | |
| Lyn Collins |
| 3 | If You Don't Know Me By Now | Aug 1981 | |
| Super Grit Cowboy Band |
| 4 | If You Don't Know Me By Now | Jul 1982 | |
| Jean Carn |
| 5 | If You Don't Know Me By Now | Feb 1986 | |
| Patti LaBelle |
| 6 | If You Don't Know Me By Now | 1 | Jul 1989 | |
| Simply Red |
| 7 | If You Don't Know Me By Now | Aug 1989 | |
| Joe Stampley |
| 8 | If You Don't Know Me By Now | Feb 2009 | |
| Seal |
| 9 | If You Don't Know Me By Now | Oct 2014 | |
| Paul Akister |