Sierra is both a surname and a given name. It is the Spanish word for saw or mountain range, and as such it connotes strength and groundedness. It originates from the Galicia and Asturias regions of northern Spain.
Notable people with the name include:
Surname:
Álvaro Sierra (born 1967), Colombian road cyclist
Javier Sierra (born 1971), Spanish journalist
Jessica Sierra (born 1985), American Idol 4 contestant
Nadine Sierra (born 1988), American operatic soprano
Rubén Sierra (born 1965), professional baseball player
Given name:
Sierra Boggess (born 1982), American theatre actress
Sierra Casady (born c. 1980), American musician, band member of CocoRosie
Sierra Hull (born 1991), American musician
Sierra Kusterbeck (born 1990), American musician, band member of VersaEmerge
Sierra McCormick (born 1997), American actress
Sierra Noble (born 1990), Canadian musician
Sierra Swan (born 1978), American musician and daughter of Billy Swan