Caesar Augustus Rodney (January 4, 1772 - June 10, 1824) was the United States Attorney General from 1807 to 1811, a U.S. Senator from Delaware from 1822 to 1823, and the U.S. Minister to Argentina from 1823 until his death in Buenos Aires in 1824. He was the nephew of Caesar Rodney, a signer of the Declaration of Independence who is depicted on the Delaware state quarter.

Rodney was born in Dover, Delaware. After graduating from the University of Pennsylvania in 1789, he studied law under Joseph B. McKean in Philadelphia and was admitted to the bar in 1793. He practiced law in Wilmington and New Castle for the next few years.

In 1796 he entered the Delaware House of Representatives. He served in the United States House of Representatives from 1803 to 1805. A staunch supporter of Thomas Jefferson, he became his Attorney General on January 20, 1807, and continued in that post in Madison's administration. He resigned on December 5, 1811. During the War of 1812, he commanded a company of volunteers in defense of Baltimore. From 1821 to 1822, he was again a Representative in Congress from Delaware, and from 1822 to 1823 served as United States Senator. Rodney was appointed United States Minister to the Argentine Republic in 1823, where he died on June 10, 1824. He was buried in an English churchyard in Buenos Aires.

This article contains material from the US Department of Justice Attorneys General of the United States (http://www.usdoj.gov/jmd/ls/agbiographies.htm#rodney) which, as a US government publication, is in the public domain.

Preceded by: John Breckinridge	Attorney General of the United States (1807–1811)	Succeeded by: William Pinkney
Preceded by: Outerbridge Horsey	U.S. Senator from Delaware First Class (1822–1823)	Succeeded by: Thomas Clayton