Ommanney or Ommaney is a surname, and may refer to:
Catherine "Cat" Ommanney, a castmember of The Real Housewives of Washington, D.C. Charles Ommanney (fl. 2010), photojournalist for Newsweek Erasmus Ommanney (1814–1904), Royal Navy officer and Arctic explorer F. D. Ommanney (1903–1980), author of books on travel and nature including Life Nature Library's The Fishes Francis Ommanney (1774–1840), English politician George Campbell Ommanney (died 1936), vicar at St Matthew's Church, Sheffield, England Henry Ommaney (1805–1829), English cricketer Henry Mortlock Ommanney (1816–1880), discoverer, surveyor and namesake of Mortlock River, Western Australia John Ommanney (1773–1855), Royal Navy officer and Commander-in-Chief, Plymouth. Montagu Ommanney (1842–1925), British civil servant and Head of the Colonial Office Richard Ommanney (born March 14, 1948), English screenwriter known for sitcom