Julian Abele Cook Jr. (born 1930) is a United States district judge.
Born in Washington, D.C., Cook received a B.A. from Pennsylvania State University in 1952 and was in the United States Army from 1952 to 1954. He received a J.D. from Georgetown University Law Center in 1957. He was a law clerk, Hon. Arthur E. Moore, Pontiac, Michigan from 1957 to 1958. He was in private practice in Detroit, Michigan from 1958 to 1961, and in Pontiac and Bloomfield Hills, Michigan from 1961 to 1978. He was a Special Assistant State Attorney General of Michigan from 1968 until his appointment to the federal bench in 1978.
On July 25, 1979, President Jimmy Carter nominated Cook to a seat vacated by Lawrence Gubow on the United States District Court for the Eastern District of Michigan. Cook was confirmed by the United States Senate on September 22, 1978, and received his commission on September 23, 1978. He served as Chief Judge from 1989-1996. He assumed senior status on December 30, 1996.