Pedro Celestino Joseph Negrete y Falla (14 May 1777 – 11 April 1846) was a Spanish politician and military man who served as a member of the interim government of Mexico after the abolition of the First Mexican Empire.

On 4 October 1824 the Constitution of the United Mexican States was promulgated, adopting the system of republican, representative, popular, federal government.

The body ceded the executive on 10 October 1824, when General Guadalupe Victoria assumed the position as first President of Mexico.

Although the fortress of San Juan de Ulúa — the last redoubt of Spanish power in Mexico, in the port of Veracruz — had been abandoned in 1825, some Peninsulares still entertained notions about restoring the monarchy, taking advantage of the general displeasure felt against the independent government.

Thus, the friars Joaquín Arenas and Francisco Martínez, along with some Mexican and Spanish military officers, including Negrete and Echávarri, rebelled against the government of Guadalupe Victoria.