Alexander Johnston (1775–1849)

Alexander Johnston (1775–1849) was an American jurist and political figure. He served as a United States Senator from Louisiana from 1823 to 1826.

Born in Virginia, Johnston received a classical education and studied law. He moved to Louisiana in the early 19th century and established a successful legal practice. He became involved in state politics, serving as a judge of the Louisiana Supreme Court before his election to the U.S. Senate.

In the Senate, Johnston was a staunch advocate for states' rights and supported Andrew Jackson. He resigned from the Senate in 1826 due to ill health. After leaving the Senate, Johnston retired to his plantation in Louisiana where he continued to be involved in local affairs until his death in 1849. His contributions to Louisiana's legal and political landscape were significant during the formative years of the state.