Manuel Guillermo Pinto (1783 – June 28, 1853) was an Argentine general and lawmaker.Pinto was born in Buenos Aires, and studied at the Royal College of San Carlos.He completed further studies in Spain, but returned to fight during the British invasions of the Río de la Plata, in 1807.He was again elected President of the Buenos Aires Legislature in 1833, but stepped down upon the granting of absolute power to Governor Juan Manuel de Rosas, in 1835.He returned to public life following the defeat of Rosas in the Battle of Caseros in 1852, and following the September 11, 1852, uprising by the province in a bid for greater autonomy, he twice served as provisional governor: from September 11 to October 31, 1852, and December 7, 1852, until his death.