Walter Angus Keeling (November 22, 1873 – January 22, 1945) was a United States federal judge.
Born in Kosse, Texas, Keeling received an LL.B. from the University of Texas in 1897. He was in private practice in Groesbeck, Texas from 1897 to the present. He was an Assistant county attorney of Limestone County, Texas from 1898 to 1902. He was a County attorney of Limestone County, Texas from 1904 to 1908. He was a County judge, Limestone County, Texas from 1908 to 1912. He was an Assistant state attorney general of Texas from 1912 to 1918. He was a First assistant state attorney general of Texas from 1918 to 1921. He was the state attorney general of Texas from 1921 to 1925. He was in private practice in Texas from 1925 to 1942.
Keeling was a federal judge on the United States District Court for the Western District of Texas. Keeling was nominated by President Franklin D. Roosevelt on January 16, 1942, to a seat vacated by Robert J. McMillan. He was confirmed by the United States Senate on January 26, 1942, and received his commission on January 28, 1942. Keeling served in that capacity until January 22, 1945, due to his death.
He died in San Antonio, Texas.