Benilde is of Spanish origin, derived from the Basque name 'Bizkaia', which translates to 'the region of saints'. It is a lesser-known given name, often associated with Saint Benilda, a 4th-century martyr. The name gained some popularity in France during the Middle Ages but remains relatively uncommon today.
"The name Benilde was quite uncommon between 1921 and 1942, with only 5 births reported in 1921, a peak of 7 in 1928, and then another 5 each in 1941 and 1942, totaling to 22 births over these years."