Mary Hill may refer to:
Heiresses Mary Hill, Countess of Hillsborough (1725/26–1780), English peeress, daughter of 4th Baron Stawell Mary Hill of Gairbraid (1730–1809), Scottish heiress and namesake of Glasgow district Maryhill Mary Hill, Marchioness of Downshire (1764–1836), Anglo-Irish politician, wife of Arthur Hill, 2nd Marquess of Downshire Lady Mary Hill (1796–1830), daughter of Arthur Hill, 2nd Marquess of Downshire Lady Mary Penelope Hill (1817–1884), daughter of Arthur Hill, 3rd Marquess of Downshire, wife of Alexander Hood, 1st Viscount Bridport
Scholars Mary Hill (physician) (1892–1987), American longest-practitioner in Nevada, married name Mary Hill Fulstone Mary Elliott Hill (1907–1969), African-American chemist Mary C. Hill, American hydrologist and professor since 1980s Mary Lynne Gasaway Hill (born 1964), American poet, writer and professor
Others Mary G. Hill (1803–1884), American temperance activist Mary Edna Hill Gray Dow (1848–1914), née Hill, American financier, school principal, and correspondent Mary Francis Hill Coley (1900–1966), née Hill, American lay midwife Mary Thompson Hill Willard (1805–1892), née Hill, American teacher and social reformer Mary Hill (actress) (1926–2000), American performer in Mesa of Lost Women, a/k/a Paula Hill Mary Elizabeth Hill (born 1985), American swimming champion, a/k/a Elizabeth Hill Newman
Places Mary Hill, British Columbia, Canadian neighbourhood in Port Coquitlam, British Columbia Mary Hill Bypass, British Columbia Highway 7B in Canada Mary Hill, Iowa, American unincorporated community
See also Hell Mary Hill, English hill near Sheffield Maryhill (disambiguation)