O. James "Jim" Lighthizer is an American lawyer, politician, and president emeritus of the American Battlefield Trust, a nonprofit battlefield preservation organization.

The American Battlefield Trust is a charitable organization whose primary focus is in the preservation of battlefields of the Revolutionary War, the War of 1812, and the American Civil War, through the acquisition of battlefield land. The American Battlefield Trust was formerly known as the Civil War Trust. On May 8, 2018, the organization announced the creation of the American Battlefield Trust as the umbrella organization for two divisions, the Civil War Trust and the Revolutionary War Trust, which was formerly known as "Campaign 1776".