The House of Commons Disqualification Act 1975 (c. 24) is an Act of the Parliament of the United Kingdom that prohibits certain categories of people from becoming members of the House of Commons.

Section 2 limits the number of government officials (specifically, holders of offices listed in Schedule 2) in the House of Commons at any one time to 95.

Any appointed above that limit are forbidden to vote until the number is reduced to 95.

Section 4 effectively adds the Crown Stewards and Bailiffs of the Chiltern Hundreds and of the Manor of Northstead to Part III to Schedule 1, thus naming them as offices whose holders are disqualified.

These offices are sinecures, used in modern times to effect resignation from the House of Commons.