Judge Alexander Nisbet (July 26, 1777 in Montrose, Scotland – November 1857) was a judge in Baltimore and a president of the Baltimore and Susquehanna Railroad. He was also one of the founding members of the St. Andrew's Society of Baltimore. He was the youngest son of the Dr. Charles Nisbet D.D. and Anne Tweedie. He moved to the US in 1785 with his parents and settled in Carlisle, Pennsylvania, where his father was appointed the first President of Dickinson College. After graduating from Dickinson in 1794, he studied law in Carlisle. He was appointed Judge of the in 1806.