This is the list of the number-one singles of the Finnish Singles Chart in 1989.[1][2]
| Issue date | Artist | Title |
|---|---|---|
| Week 1 | Stone | "Back to the Stone Age" |
| Week 2 | ||
| Week 3 | ||
| Week 4 | ||
| Week 5 | ||
| Week 6 | Sabrina | "Like a Yo-Yo" |
| Week 7 | ||
| Week 8 | ||
| Week 9 | Edelweiss | "Bring Me Edelweiss" |
| Week 10 | Marc Almond featuring Gene Pitney | "Something's Gotten Hold of My Heart" |
| Week 11 | Roy Orbison | "You Got It" |
| Week 12 | Marc Almond featuring Gene Pitney | "Something’s Gotten Hold of My Heart" |
| Week 13 | Madonna | "Like a Prayer" |
| Week 14 | ||
| Week 15 | ||
| Week 16 | ||
| Week 17 | ||
| Week 18 | ||
| Week 19 | Roxette | "The Look" |
| Week 20 | ||
| Week 21 | ||
| Week 22 | Kim Lönnholm | "Minä olen muistanut" |
| Week 23 | ||
| Week 24 | ||
| Week 25 | ||
| Week 26 | ||
| Week 27 | ||
| Week 28 | ||
| Week 29 | ||
| Week 30 | ||
| Week 31 | ||
| Week 32 | ||
| Week 33 | ||
| Week 34 | London Boys | "London Nights" |
| Week 35 | ||
| Week 36 | ||
| Week 37 | Bat & Ryyd | "Ehtaa tavaraa (80-luvun tykki)" |
| Week 38 | ||
| Week 39 | ||
| Week 40 | ||
| Week 41 | ||
| Week 42 | ||
| Week 43 | Kaoma | "Lambada" |
| Week 44 | ||
| Week 45 | ||
| Week 46 | ||
| Week 47 | ||
| Week 48 | ||
| Week 49 | Phil Collins | "Another Day in Paradise" |
| Week 50 | Technotronic | "Pump Up the Jam" |
| Week 51 | ||
| Week 52 |