Taoiseach of Ossoria

The Taoiseach is the prime minister and head of government of Ossoria. The Taoiseach is appointed by the High Queen upon the nomination of the Teach na dTeachtaí (one of the two lower chambers of the Dáil Osraí, the federal legislature of Ossoria, which represents the commons) and must retain the support of a majority of the TDs (Teachta Dála, the Ossorian equivalent to "Member of Parliament") and of the High Queen to remain in office.

The word "taoiseach" means "chief" or "leader" in Ossorian Gaelic, and was adopted for the leader of the majority faction of the House of Commons upon its reconstitution in 1870. It is regarded as the official title of the head of government in both English and Gaelic, and is not used for the prime ministers of other countries, who are instead referred to in Gaelic by the generic term "príomh-aire".

The current Taoiseach is Innis Ní Gearailt TD, leader of the Crown Nationalist Party, who first took office on 1 May 2010 following a leadership realignment in the Crown Nationalist Party ahead of the accession of then-Crown Princess Tara to the High Queenship, and currently leads a coalition majority consisting of the Crown Nationalist Party and the Constitutional Union Party.