Observatory Hill is the name of several hills around the world including:Observatory Hill, Darjeeling, in West Bengal, India Observatory Hill, Hong Kong Observatory Hill (Pittsburgh), a neighborhood in Pittsburgh, Pennsylvania Observatory Hill (Saanich), British Columbia, Canada, site of the Dominion Astrophysical Observatory Observatory Hill, site of the United States Naval Observatory Observatory Park, Sydney, New South Wales, Australia, also known as Observatory Hill Tähtitorninvuori, a hill and park in Helsinki, Finland