Chilean parliamentary election, 2005 Senate Senate

| Cons_ | Democratic_Coalition | Alliance | Together_We_Can_Do_More | Independent_Regional_Force | Independents |
|---|---|---|---|---|---|
| 7th | Guido Girardi ( PPD ) | (R) Jovino Novoa ( UDI ) | Eduardo Artés (Ind.) | none | none |
| 8th | Soledad Alvear ( PDC ) | Lily Pérez ( RN ) | Manuel Riesco ( PC ) | none | none |
| 8th | Gonzalo Martner ( PS ) | Pablo Longueira ( UDI ) | Efrén Osorio ( PH ) | none | none |
| 9th | Aníbal Pérez ( PPD ) | Ramón Achurra (Ind.) | Carmen Moncada (Ind.) | none | none |
| 9th | Juan Pablo Letelier ( PS ) | (R) Andrés Chadwick ( UDI ) | Marilén Cabrera ( PH ) | none | none |
| 12th | (R) Hosain Sabag ( PDC ) | Alberto Gyhra (Ind.) | Hugo Corvalán (Ind.) | none | none |