The 2005 Rally d'Italia Sardegna (formally the 2nd Supermag Rally Italia Sardinia) was the fifth round of the 2005 World Rally Championship.

The rally was held over three days between 29 April and 1 May 2005, and was won by Citroën's Sébastien Loeb, his 13th win in the World Rally Championship.

[1] All dates and times are CEST (UTC+2).