Orietta is an Italian given name. Notable people with the name include:
Orietta Berti (born 1943), Italian singer Orietta Calliari (born 1969), Italian ski mountaineer Orietta Grossi (1959–2024), Italian basketball player Orietta Lozano (born 1956), Colombian poet Orietta Mancia (born 1968), Italian long-distance runner Orietta Patron, Italian swimmer at the 1989 European Aquatics Championships