This is a list of the German Media Control Top100 Singles Chart number-ones of 1990.
| Indicates best-performing single and album of 1990[1] [2] |
| Song | Artist | Album | Artist | ||
| 1 January | colspan="4" | ||||
| 8 January | "Another Day in Paradise" | bgcolor=#FFFF99 rowspan="12" | "...But Seriously" | Phil Collins | |
| 15 January | |||||
| 22 January | |||||
| 29 January | |||||
| 5 February | |||||
| 12 February | "Pump ab Das Bier" | Werner Wichtig | |||
| 19 February | |||||
| 26 February | |||||
| 5 March | "Nothing Compares 2 U" | Sinéad O'Connor | |||
| 12 March | |||||
| 19 March | |||||
| 26 March | |||||
| 2 April | "I Do Not Want What I Haven't Got" | Sinéad O'Connor | |||
| 9 April | |||||
| 16 April | |||||
| 23 April | |||||
| 30 April | |||||
| 7 May | |||||
| 14 May | |||||
| 21 May | bgcolor=#FFFF99 rowspan="16" | "Verdammt, Ich Lieb' Dich" | Matthias Reim | ||
| 28 May | |||||
| 4 June | |||||
| 11 June | "Auf dem Kreuzzug ins Glück" | Die Toten Hosen | |||
| 18 June | "I'm Breathless" | Madonna | |||
| 25 June | "Auf dem Kreuzzug ins Glück" | Die Toten Hosen | |||
| 2 July | |||||
| 9 July | "Step by Step" | New Kids on the Block | |||
| 16 July | "Reim" | Matthias Reim | |||
| 23 July | |||||
| 30 July | |||||
| 6 August | |||||
| 13 August | |||||
| 20 August | |||||
| 27 August | "Pretty Woman" | Various artists | |||
| 3 September | |||||
| 10 September | "Tom's Diner" | DNA featuring Suzanne Vega | |||
| 17 September | |||||
| 24 September | |||||
| 1 October | |||||
| 8 October | "Luxus" | Herbert Grönemeyer | |||
| 15 October | |||||
| 22 October | |||||
| 29 October | "I've Been Thinking About You" | Londonbeat | |||
| 5 November | |||||
| 12 November | "Sadeness Part I" | Enigma | |||
| 19 November | "Live" | Westernhagen | |||
| 26 November | "X für 'e U" | BAP | |||
| 3 December | "Serious Hits... Live!" | Phil Collins | |||
| 10 December | |||||
| 17 December | |||||
| 24 December | |||||
| 31 December | |||||