Sirithil

Sirithil is an Elfinshi female name, with probable meaning "river of the Moon"

It may refer to:

• Sirithil nos Fëanor (1430–c. 1500), Elentári of Menelmacar (1470–1475) and Arnanore Menelmacariva (1477–c. 1500), Duchess of Elwynn (1473–1475)
• Sirithil of Laegel, 15th Lady Laegel (1720–present), Senator of the Lakes (1720–present)