Top 40 Hits of March 1999
| 1 | Britney Spears | Baby One More Time |
| 2 | Boyzone | When The Going Gets Tough |
| 3 | Whitney Houston | It's Not Right But It's Okay |
| 4 | Blur | Tender |
| 5 | The Vengaboys | We Like To Party! (The Vengabus) |
| 6 | Cher | Strong Enough |
| 7 | Steps | Better Best Forgotten |
| 8 | B*Witched | Blame It On The Weatherman |
| 9 | George Michael & Mary J Blige | As |
| 10 | The Corrs | Runaway |
| 11 | Stereophonics | Just Looking |
| 12 | 2Pac | Changes |
| 13 | Mr Oizo | Flat Beat |
| 14 | Lenny Kravitz | Fly Away |
| 15 | Blondie | Maria |
| 16 | The Cardigans | Erase / Rewind |
| 17 | Steps | Heartbeat / Tragedy |
| 18 | Shawn Mullins | Lullaby |
| 19 | Madonna | Nothing Really Matters |
| 20 | Manic Street Preachers | You Stole The Sun From My Heart |
| 21 | DJ Sakin & Friends | Protect Your Mind (For The Love Of A Princess) |
| 22 | The Cartoons | Witch Doctor |
| 23 | Robbie Williams | Strong |
| 24 | Lauryn Hill | Ex-Factor |
| 25 | Elton John & LeAnn Rimes | Written In The Stars |
| 26 | Armand Van Helden featuring Duane Harden | You Don't Know Me |
| 27 | Roxette | Wish I Could Fly |
| 28 | Barenaked Ladies | One Week |
| 29 | Billie | Honey To The Bee |
| 30 | 'N Sync | I Want You Back |
| 31 | E17 | Betcha Can't Wait |
| 32 | Kele Le Roc | My Love |
| 33 | Bryan Adams featuring Melanie C | When You're Gone |
| 34 | Ginuwine | What's So Different? |
| 35 | The Beautiful South | How Long's A Tear Take To Dry? |
| 36 | Travis | Writing To Reach You |
| 37 | REM | At My Most Beautiful |
| 38 | Andy Williams | Music To Watch Girls By |
| 39 | A+ | Enjoy Yourself |
| 40 | The Offspring | Pretty Fly (For A White Guy) |