Harry Lindley Hupp (April 5, 1929 – January 27, 2004) was a United States federal judge.
Born in Los Angeles, California, Hupp received an A.B. from Stanford University in 1953 and an LL.B. from Stanford Law School in 1955. He was in the United States Army from 1950 to 1952. He was in private practice in Los Angeles from 1955 to 1972, and was then a judge on the Superior Court, Los Angeles, California from 1972 to 1984.
On February 14, 1984, Hupp was nominated by President Ronald Reagan to a seat on the United States District Court for the Central District of California vacated by A. Andrew Hauk. Hupp was confirmed by the United States Senate on March 20, 1984, and received his commission on March 21, 1984. He assumed senior status on April 1, 1997, serving in that capacity until his death, in 2004.