The president of the Liberal Democrats chairs the Federal Board of the Liberal Democrats of the United Kingdom.

The responsibilities of the president are similar to that of chairman of the Conservative Party or chairman of the Labour Party,^{[citation needed]} although the role is elected by the membership for a fixed term.

They are elected in an all-member ballot by Liberal Democrat party members for a three-year term (previously two-year terms). They may serve a maximum of two three-year terms. The next scheduled contest will occur in Autumn 2025 with the winner beginning their term of office on 1 January 2026. The election is conducted using the single transferable vote.

The current president is Mark Pack, who was elected in 2019 and took office on 1 January 2020.

In order to be a candidate for president, the candidate must be a member of the Liberal Democrats and secure the nomination of not less than 200 members in not less than 20 local parties (including, for this purpose, the specified associated organisations representing youth and/or students).^[1]

• 2017 Liberal Democrats leadership election
• 2017 Liberal Democrats deputy leadership election