Robert Traill or Trail may refer to: Robert Traill of Greyfriars (1603–1678), minister of Greyfriars, Edinburgh and refugee in Holland Robert Traill (Scottish minister) (1642–1716), minister in Kent, author and prisoner on the Bass Rock Robert Traill (Irish clergyman) (1793–1847), Church of Ireland clergyman Robert Henry Traill or Roy Traill (1892–1989), New Zealand wildlife ranger Robert Trail (moderator) (1720–1775), Scottish minister
See also Robert Traill Spence Lowell (1816–1891), American clergyman Robert Traill Spence Lowell IV (1917–1977), American poet