| Top 40 Hits of May 1978 |
| 1 |
Boney M | Rivers Of Babylon / Brown Girl In The Ring |
| 2 |
Bee Gees | Night Fever |
| 3 |
Darts | Boy From New York City |
| 4 |
Johnny Mathis & Deniece Williams | Too Much Too Little Too Late |
| 5 |
Patti Smith Group | Because The Night |
| 6 |
Yvonne Elliman | If I Can't Have You |
| 7 |
Dee D Jackson | Automatic Lover |
| 8 |
John Paul Young | Love Is In The Air |
| 9 |
Andrew Gold | Never Let Her Slip Away |
| 10 |
Tavares | More Than A Woman |
| 11 |
Raydio | Jack And Jill |
| 12 |
Michael Zager Band | Let's All Chant |
| 13 |
Raffaella Carra | Do It Do It Again |
| 14 |
Blondie | (I'm Always Touched By Your) Presence Dear |
| 15 |
Brian & Michael | Matchstalk Men And Matchstalk Cats And Dogs |
| 16 |
Ruby Winters | Come To Me |
| 17 |
Boomtown Rats | She's So Modern |
| 18 |
Ian Dury | What A Waste |
| 19 |
Chic | Everybody Dance |
| 20 |
Hi Tension | Hi Tension |
| 21 |
John Travolta & Olivia Newton-John | You're The One That I Want |
| 22 |
Stranglers | Nice 'N' Sleazy |
| 23 |
Rose Royce | It Makes You Feel Like Dancin' |
| 24 |
Plastic Bertrand | Ca Plane Pour Moi |
| 25 |
Izhar Cohen & Alphabeta | A Bi Na Bi |
| 26 |
Suzi Quatro | If You Can't Give Me Love |
| 27 |
Co-Co | Bad Old Days |
| 28 |
X-Ray Spex | The Day The World Turned Dayglo |
| 29 |
Smokie | Oh Carol |
| 30 |
Sheila & B Devotion | Singin' In The Rain |
| 31 |
Showaddywaddy | I Wonder Why |
| 32 |
Rod Stewart & The Scottish World Cup Squad | Ole Ola (Mulher Brasileira) |
| 33 |
Squeeze | Take Me I'm Yours |
| 34 |
Tom Robinson Band | Up Against The Wall |
| 35 |
Genesis | Follow You Follow Me |
| 36 |
Sham 69 | Angels With Dirty Faces |
| 37 |
Manhattan Transfer | On A Little Street In Singapore |
| 38 |
Elvis Costello & The Attractions | Pump It Up |
| 39 |
Wings | With A Little Luck |
| 40 |
Dr Hook | More Like The Movies |