Alexander Barrow I (March 27, 1801 – December 29, 1846) was a lawyer, slave owner,[1] and United States Senator from Louisiana.

Eventually, Alexander Barrow became involved in politics and was elected to the Louisiana House of Representatives, where he served for several years.

"[2] In 1840 Barrow was elected a Whig to the United States Senate, serving from 1841 until his death.

According to longtime Washington journalist Benjamin Perley Poore, Barrow was "the handsomest man in the Senate.

His remains were interred in the family cemetery on Afton Villa plantation, near Bayou Sara, Louisiana.