The 2003 Scottish Parliament election was the second election of members to the Scottish Parliament. It was held on 1 May 2003 and it brought no change in terms of control of the Scottish Executive. Jack McConnell, the Labour Party MSP, remained in office as First Minister for a second term and the Executive continued as a Labour and Liberal Democrat coalition. As of 2023, it remains the last Scottish Parliament election victory for the Scottish Labour Party, and the last time the Scottish National Party lost a Holyrood election.

The Scottish Parliament is the devolved, unicameral legislature of Scotland. Located in the Holyrood area of the capital city, Edinburgh, it is frequently referred to by the metonym Holyrood. The Parliament is a democratically elected body comprising 129 members known as Members of the Scottish Parliament (MSPs), elected for five-year terms under the regionalised form of additional member system (MMP): 73 MSPs represent individual geographical constituencies elected by the plurality (first-past-the-post) system, while a further 56 are returned as list members from eight additional member regions. Each region elects seven party-list MSPs. Each region elects 15 to 17 MSPs in total. The most recent general election to the Parliament was held on 6 May 2021, with the Scottish National Party winning a plurality.