European Parliament elections were held for the first time in Gibraltar on 10 June 2004 as part of European Union-wide elections. Although part of the European Union, Gibraltar had never before voted in European Parliamentary elections, in part due to its small electorate of just over 20,000 which would cause Gibraltar to be over-represented by about 30 times if even a single seat were to be assigned.

The Conservative Party in Gibraltar is the part of the Conservative Party that operates in the British Overseas Territory of Gibraltar. It is a branch of the South West Region of the Conservative Party. The party does not field candidates in the local elections in the territory, and so far has only ever stood candidates for the European Parliament constituency of South West England and Gibraltar.