The Cardiff Council election in 2008 was held on 1 May, along with other local elections in the UK. All 75 seats of Cardiff Council were contested, with it remaining in no overall control. It was preceded by the 2004 election and followed by the 2012 election
Candidates from nine parties as well as independents stood for election. Of these Liberal Democrat, Conservative, Labour, Plaid Cymru and independent councillors were elected.
After this election the council remained in no overall control with the Liberal Democrats remaining the largest party on the council, after a net gain of seats. All parties gained seats, other than Labour who halved their seat share from the previous election. Three independents were elected for the first time since 1999, although two of these were former Conservative councillors that defected during the previous term.
The Liberal Democrats formed a coalition with the Plaid Cymru group to lead the council; Liberal Democrat Rodney Berman became council leader, with Neil McEvoy of Plaid Cymru and Judith Woodman of the Liberal Democrats becoming deputy leaders. The Conservative party emerged as the official opposition on the council, after they became the second largest party.
The ward results listed below are based on the changes from the 2004 elections, not taking into any mid-term by-elections or party defections.