Bernardo de Iturriaza (1608 in Ezcaray, La Rioja, Spain – 1678 in Lima) was a Spanish judge and colonial official.
In his capacity as president of the Audiencia of Lima he twice served as governor (interim viceroy) of Peru (1666–1667 and 1672–1674).
After some years he was named to the chair of digesto y decretales (pandects[1] and decretals[citation needed]).
In 1647 he was named alcalde for criminal law, and in 1652 he became an oidor (a judge in the Audiencia).
In the interval between the death of Viceroy Diego de Benavides, 8th Count of Santisteban in 1666 and the arrival of his replacement, Pedro Antonio Fernández de Castro, the following year, Iturriaza served as governor (interim viceroy) of Peru.