Joaquín Mora Fernández (16 January 1786 – 26 October 1862) was the provisional head of state of Costa Rica from 1 March to 17 April 1837.
He was commissioned in Costa Rica in Granada, Nicaragua (1822), a member of the special seat of judgement that tried the royal coup participant Joaquín de Oreamuno y Muñoz de la Trinidad (1823), a member of the Representative Council (1829–1831 and 1836–1838) and alternate judges of the Supreme Court of Costa Rica (1832).
In January 1839, Mora was accused of conspiring against the government of Braulio Carrillo Colina and of planning his murder.
Given this fact, Braulio Carrillo Colina issued a decree which stated that if Joaquin Mora Fernandez reached anywhere within the territory of Costa Rica, he should be shot immediately.
He returned to Costa Rica after the fall of Carrillo, and stayed away from politics, being devoted to the management of their coffee plantations.