Prior to its uniform adoption of proportional representation in 1999, the United Kingdom used first-past-the-post for the European elections in England, Scotland and Wales.
The constituency of London South and Surrey East was one of them.
It was merged from the London South and Surrey constituencies.
[1] In 1989, the Surrey Mirror reported that the total electorate was around 454,000.
[2] In boundary changes which took effect at the 1994 European Election, it lost the Reigate constituency but gained Epsom and Ewell.