Robert Traill

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