The semi-final was held on 19 May 2005 at 21:00 (CET). 25 countries performed and all 39 participants voted.
| Draw | Country | Language | Artist | Song | Place | Points |
|---|---|---|---|---|---|---|
| 01 | Austria | English, Spanish | Global.Kryner | “Y así” | 21 | 30 |
| 02 | Lithuania | English | Laura and The Lovers | “Little by Little” | 25 | 17 |
| 03 | Portugal | English, Portuguese | 2B | “Amar” | 17 | 51 |
| 04 | Moldova | English, Romanian | Zdob şi Zdub | “Bunica bate toba” | 2 | 207 |
| 05 | Latvia | English | Valters and Kaža | “The War Is Not Over” | 10 | 85 |
| 06 | Monaco | French | Lise Darly | “Tout de moi” | 24 | 22 |
| 07 | Israel | English, Hebrew | Shiri Maimon | “Hasheket Shenish’ar” (השקט שנשאר) | 7 | 158 |
| 08 | Belarus | English | Angelica Agurbash | “Love me Tonight” | 13 | 67 |
| 09 | Netherlands | English | Glennis Grace | “My Impossible Dream” | 14 | 53 |
| 10 | Iceland | English | Selma | “If I Had Your Love” | 16 | 52 |
| 11 | Belgium | French | Nuno Resende | “Le grand soir” | 22 | 29 |
| 12 | Estonia | English | Suntribe | “Let’s Get Loud” | 20 | 31 |
| 13 | Norway | English | Wig Wam | “In My Dreams” | 6 | 164 |
| 14 | Romania | English | Luminiţa Anghel and Sistem | “Let Me Try” | 1 | 235 |
| 15 | Hungary | Hungarian | NOX | “Forogj, világ!” | 5 | 167 |
| 16 | Finland | English | Geir Rönning | “Why?” | 18 | 50 |
| 17 | Macedonia | English | Martin Vučić | “Make My Day” | 9 | 97 |
| 18 | Andorra | Catalan | Marian van de Wal | “La Mirada Interior” | 23 | 27 |
| 19 | Switzerland | English | Vanilla Ninja | “Cool Vibes” | 8 | 114 |
| 20 | Croatia | Croatian | Boris Novković feat. Lado Members | “Vukovi umiru sami” | 4 | 169 |
| 21 | Bulgaria | English | Kaffe | “Lorraine” | 19 | 49 |
| 22 | Ireland | English | Donna and Joe | “Love?” | 14 | 53 |
| 23 | Slovenia | Slovene | Omar Naber | “Stop” | 12 | 69 |
| 24 | Denmark | English | Jakob Sveistrup | “Talking to You” | 3 | 185 |
| 25 | Poland | Polish, Russian | Ivan and Delfin | “Czarna dziewczyna” | 11 | 81 |