Francisco Del Rosario Sánchez (March 9, 1817 - July 4, 1861) was a politician and founding father of the Dominican Republic. He is considered by Dominicans as the second founding father of the 1844 Dominican War of Independence, after Juan Pablo Duarte and before Matías Ramón Mella . He was the son of Narciso Sánchez and Olaya Del Rosario, who were not married at the time of his birth.

Until 1843, Duarte's figure clouds the participation of many other insurgent Dominicans associated with him in the 1844 independence movement. He was the son of a Spanish immigrant, and travelled to the USA and Europe. His vision of the cause was the typical republican goal of the Age of Enlightenment. Duarte's exile takes place at the last and most crucial stage of the struggle. It is when Duarte is exiled to Venezuela that the figure of Sánchez becomes central.

Sánchez takes the lead as the prime mover of the independence movement, maintaining contact with Duarte through his relatives. While educated and having taught himself latin and french later in life, he is mostly remembered as a man of action. In the proceedings that took place just before the proclamation of independence in February 27, 1844, Sánchez was voted by his peers in La Trinitaria as Commander in Arms and Chief of the Government Junta in the nascent republic. This was quite a recognition and testament to his virtues. He was 27 at the time, his social standing was clearly more humble than that of the men around him, and his black complexion struck a dissonant note among a group of mainly European descendants trying to rebel against a black republic.

After a brief period of turmoil and quick political succession, Pedro Santana exiled the main architects of the Independence. Sánchez spent four years in exile and was eventually pardoned. He returned to the Dominican Republic in time to see Santana lead the Spanish Annexion , a proccess of reverting the Dominican side of the island back into a Spanish colony. Sánchez defied the traitors of the republican cause. He was captured by Santana's forces and executed in 1861.