The Post Office Act 1977 (c. 44) was an act of Parliament of the United Kingdom, which regulated corporate governance at the Post Office.

It required that employees had voting rights for the board of directors.

It is generally thought to have proved successful, but was repealed in 1979.

Section 1(2) inserted a new section 6(2A) saying the maximum number would be reduced back to 12 on 31 March 1980, unless the Secretary of State made an order otherwise, draft approved by a resolution of each House of Parliament.

It let the two year ‘experiment’ under the Post Office Act 1977 lapse.