Henry Norman Graven (June 1, 1893 – February 1, 1970) was a United States federal judge on the United States District Court for the Northern District of Iowa.
Graven was born in St. James, Minnesota. During World War I he served as a U.S. Army combat engineer. He received an A.B. from the University of Minnesota in 1921, and an LL.B. from the University of Minnesota Law School in 1921. Relocating to Iowa, he was in private practice in Greene, Iowa from 1921 to 1937. From 1936 to 1937 he was a special assistant state attorney general of Iowa and a counsel for the Iowa State Highway Commission. From 1937 to 1944 Graven was a trial court judge on the 12th Judicial District Court of Iowa.
From 1944 until his death in 1970, Graven presided as a federal judge on the United States District Court for the Northern District of Iowa. Graven was nominated by President Franklin D. Roosevelt on March 3, 1944, to a seat vacated through the retirement of George Cromwell Scott. He was confirmed by the United States Senate on March 21, 1944, and received his commission on March 24, 1944. He served as chief judge in 1961, before assuming senior status on August 31, 1961. Graven continued to serve until his death on February 1, 1970, in San Antonio, Texas.