Mariana is a Spanish and Portuguese name with two roots: it is the feminine of the Roman Marianus, a name from the Marius family, and it has long been understood as a blend of Maria and Ana, so it is read as "of Marius" or "grace of Mary". Shakespeare used it in Measure for Measure, and the Mariana Islands in the Pacific were named for the Spanish queen Mariana of Austria. In the United States Mariana rose from number 331 in 2000 to a peak of number 165 in 2005 and ranks number 261 among girls' names in 2025.