David Martin is a Scottish politician who has served as co-convener of the Citizens' Assembly of Scotland since 2019. A member of the Scottish Labour Party, he was a Member of the European Parliament (MEP) from 1984 to 2019, having first represented the Lothians constituency until 1999 and then for the Scotland constituency. He was the United Kingdom's longest serving MEP and the second longest serving MEP in the whole European Parliament.

The 2019 European Parliament election was the United Kingdom's component of the 2019 European Parliament election. It was held on Thursday 23 May 2019 and the results announced on Sunday 26 and Monday 27 May 2019, after all the other EU countries had voted. This was the United Kingdom's final participation in a European Parliament election before leaving the European Union on 31 January 2020, and was also the last election to be held under the provisions of the European Parliamentary Elections Act 2002 before its repeal under the European Union (Withdrawal) Act 2018.