The Liverpool Protestant Party (LPP) were a minor political party operating in the city of Liverpool in North-West England. They were formed by elements inside the city's Orange Order community. Traditionally the "orange vote" would go to the Conservatives but in 1903, the LPP was formed as a distinct party by George Wise . They contested four seats at the next municipal election, with three (including Wise) being successful.

They opposed the emergent socialist politics of the UK Labour movement and called for curbs on immigration into Great Britain from Ireland. They also blamed Irish immigrants for unemployment, poor housing and high rates.

They primarily fought local government seats, but for a while they did contest the Liverpool Kirkdale seat for Westminster elections (polling a quarter of the seat's vote in 1931). They had a number of councillors throughout their existence, even as late as the 1960s. They won their last seat in 1973 but activity was waning and as the "orange vote" subsided in influence the LPP found it harder to continue. In 1974 they were invited to subsume themselves into the local Conservatives Party, which they agreed to do.

The issue of the "orange vote" has not totally died in Liverpool though. The Democratic Unionist Party has looked into the possibility of establishing a branch in Liverpool, possibly considering standing local government candidates there as well. Former members of the LPP have been involved with this attempt.