Thomas Leland, born in 1722 and passing in 1785, was an Irish historian and Anglican clergyman. He was educated at Trinity College, Dublin, and held a position as a fellow there. Leland is recognized for his significant contributions to the historical understanding of Ireland during his lifetime.

His most notable work is a comprehensive "History of Ireland," which was published in multiple volumes. This work provided a detailed account of the island's past, covering various periods and events. Leland's writings were influential in shaping historical narratives of Ireland in the 18th century, and he is remembered as a key figure in Irish historiography.

Thomas Leland (1722–1785) was an Irish historian and clergyman. He was educated at Trinity College, Dublin, where he later became a fellow. Leland dedicated a significant portion of his scholarly career to documenting and interpreting the history of Ireland. His work aimed to provide a comprehensive narrative of the island's past, making it accessible to a wider audience and contributing to the development of historical scholarship concerning Ireland.

Leland's magnum opus is his "History of Ireland." This extensive work, published in several volumes, offered a detailed chronological account of Irish history. It covered political, social, and cultural aspects of the island's development over centuries. The "History of Ireland" was considered a significant achievement in its time and remains a valuable resource for understanding 18th-century perspectives on Irish history. His approach was characteristic of historical writing during the Enlightenment, seeking to present a reasoned and detailed account of past events.