The Speaker of the Irish House of Commons was the presiding officer of the Irish House of Commons until its disestablishment in 1800.

The Irish House of Commons was the lower house of the Parliament of Ireland that existed from 1297 until the end of 1800. The upper house was the House of Lords. The membership of the House of Commons was directly elected, but on a highly restrictive franchise, similar to the unreformed House of Commons in contemporary Great Britain. Catholics were disqualified from sitting in the Irish parliament from 1691, even though they comprised the vast majority of the Irish population.