The 1868 United Kingdom general election was the first after passage of the Reform Act 1867, which enfranchised many male householders, thus greatly increasing the number of men who could vote in elections in the United Kingdom. It was the first election held in the United Kingdom in which more than a million votes were cast; nearly triple the number of votes were cast compared to the previous election in 1865.

The Representation of the People Act 1867, known as the Reform Act 1867 or the Second Reform Act, is an act of the British Parliament that enfranchised part of the urban male working class in England and Wales for the first time. It took effect in stages over the next two years, culminating in full commencement on 1 January 1869.