William Linn

William Linn may refer to:


 * William Linn (clergyman) (1752–1808), President of Queen's College (now Rutgers University) and Chaplain of the United States House of Representatives
 * William Linn (soldier) (died 1836?), believed to have fought and died in the Battle of the Alamo
 * William Alexander Linn (1846–1917), American journalist and historian