Prudencio de Cózar (c. 1760 – 6 April 1824) was a Spanish military officer and magistrate known for his significant contributions in Guatemala during the late 18th and early 19th century. Hailing from Ciudad Real, Spain, Cózar commenced his military journey at the age of 16, serving in the Saboya infantry regiment and later participating in the Battle of Roatán during the war against Great Britain. His impact extended to his roles as corregidor of Quetzaltenango and Alcalde mayor for Totonicapán, where he facilitated institutional and cultural development, including the establishment of schools in rural indigenous areas. Cózar was also recognized for his fair treatment of the indigenous and ladino sectors, fostering an alliance between different societal factions. Notably, he led an expeditionary force to Totonicapán and promoted the membership of Los Altos as a state in the Federal Republic of Central America. Cózar's legacy lives on through his son José Gabriel, who later became a prominent figure in Quetzaltenango's political and military circles. His remarkable life came to an end on 6 April 1824, leaving behind a lasting imprint on Guatemala's history.