Joseph A. Diclerico Jr. (born January 30, 1941) is a Senior United States District Judge of the United States District Court for the District of New Hampshire.
Born in Lynn, Massachusetts, Diclerico received a B.A. from Williams College in 1963 and an LL.B. from Yale Law School in 1966. He was a law clerk to the Hon. Aloysius J. Connor, U.S. District Court, District of New Hampshire from 1966 to 1967, and was then a law clerk to the New Hampshire Supreme Court from 1967 to 1968. He was in private practice in Concord, New Hampshire from 1968 to 1970. He was an assistant state attorney general of New Hampshire from 1970 to 1977. He was an associate justice of the New Hampshire Superior Court from 1977 to 1991, and Chief Justice of that court from 1991 to 1992.
On April 9, 1992, Diclerico was nominated by President George H. W. Bush to a new seat on the United States District Court for the District of New Hampshire created by 104 Stat. 5089. He was confirmed by the United States Senate on August 12, 1992, and received his commission on August 17, 1992. He served as chief judge from 1992 to 1997. He assumed senior status on March 15, 2007.