William Alexander, also known as Lord Stirling (1726 – 15 January 1783), was a Scottish-American major general during the American Revolutionary War. He was considered male heir to the Scottish title of Earl of Stirling through Scottish lineage (being the senior male descendant of the paternal grandfather of the 1st Earl of Stirling, who had died in 1640), and he sought the title sometime after 1756. His claim was initially granted by a Scottish court in 1759; however, the House of Lords ultimately over-ruled Scottish law and denied the title in 1762. He continued to hold himself out as "Lord Stirling" regardless.