| | Pop | R&B | Date | Label | Artist | Song | Composer |
|---|
| | 1 | 23 | Jul-1978 | Capitol | A Taste of Honey | Boogie Oogie Oogie | Johnson-Kibble |
| | 30 | | Jun-1978 | Sire | Boney M | Rivers of Babylon | Frank Farian, George Rayam |
| | 10 | | Oct-1978 | Sire | Boney M | Rasputin | Farian, Jay, Rayam |
| | 1 | 1 | Nov-1978 | Atlantic | CHIC | Le Freak | Rodgers-Edwards |
| | 38 | 12 | Jun-1978 | Atlantic | CHIC | Everybody Dance | Rodgers-Edwards |
| | 1 | 1 | Jul-1978 | Motown | Commodores | Three Times a Lady | Lionel Ritchie |
| | 3 | 5 | Jun-1978 | Casablanca | Donna Summer | Last Dance | Paul Jabara |
| | 1 | 20 | Sep-1978 | Casablanca | Donna Summer | MacArthur Park | Jimmy Webb |
| | 9 | 1 | Aug-1978 | Columbia | Earth Wind & Fire | Got To Get You Into My Life | Lennon-McCartney |
| | 8 | 1 | Dec-1978 | ARC | Earth Wind & Fire | September | McKay/White/Willis |
| | 9 | 19 | Jul-1978 | RCA | Evelyn 'Champagne' King | Shame | Cross/Fitch |
| | 28 | 1 | Nov-1978 | Warner | Funkadelic | One Nation Under A Groove | Clinton-Morrison-Shider |
| | 7 | 3 | Jun-1978 | Epic | Heatwave | The Groove Line | Rod Temperton |
| | 6 | 1 | Dec-1978 | Infinity | Hot Chocolate | Every 1's a Winner | Brown |
| | 24 | 21 | Feb-1978 | Philly Int'l | Lou Rawls | Lady Love | Gray-Marshall |
| | 10 | 1 | Feb-1978 | Capitol | Natalie Cole | Our Love | Jackson-Yancey |
| | 16 | 1 | Feb-1978 | Casablanca | Parliament | Flash Light | Clinton, Collins, Worrell |
| | | 1 | Dec-1978 | Casablanca | Parliament | Aqua Boogie | Clinton, Collins, Worrell |
| | 8 | 28 | May-1978 | Drive | Peter Brown | Dance With Me | Brown-Rans |
| | 2 | 1 | Dec-1978 | Planet | Pointer Sisters | Fire | Springsteen |
| | 8 | 1 | Feb-1978 | Arista | Ray Parker Jr & Raydio | Jack & Jill | Ray Parker |
| | 19 | 4 | Sep-1978 | Fantasy | Sylvester | Dance (Disco Heat) | Perren-Saint Lewis |
| | 32 | 36 | Apr-1978 | Capitol | Tavares | More than a Woman | Barry Gibb |
| | 25 | 1 | Jul-1978 | Philly Int'l | Teddy Pendergrass | Close the Door | Gamble-Huff |
| | | 20 | Aug-1978 | Philly Int'l | Teddy Pendergrass | Come Go with Me | Gamble-Huff |
| | 54 | 3 | Sep-1978 | Epic | The Jacksons | Blame in on the Boogie | Michael Jackson, Elmar Krohn |
| | 4 | 1 | Jun-1978 | Philly Int'l | The O'Jays | Use Ta Be My Girl | Gamble-Huff |
| | 11 | 9 | Mar-1978 | Atlantic | The Trammps | Disco Inferno | Green/Kersey |
| | 2 | 32 | Nov-1978 | Casablanca | Village People | Y.M.C.A. | Belolo-Morali-Willis |
| | 25 | | Jul-1978 | Casablanca | Village People | Macho Man | Belolo-Morali-Whitehead-Willis |
