Robert Andrew Ainsworth Jr. (May 10, 1910 – December 22, 1981) was a United States circuit judge of the United States Court of Appeals for the Fifth Circuit and previously was a United States district judge of the United States District Court for the Eastern District of Louisiana.

Robert Andrew Ainsworth Jr.
Fifth Circuit Court of Appeals
Born 1910 in Gulfport, MS
Died 1981
FJC ID: 16