Ronald Rene Lagueux (born June 30, 1931) is a United States federal judge.
Born in Lewiston, Maine, Lagueux received an A.B. from Bowdoin College in 1953 and an LL.B. from Harvard Law School in 1956. He was in private practice in Providence, Rhode Island from 1956 to 1968. He was an Associate Justice of the Rhode Island Supreme Court from 1968 to 1986.
On January 21, 1986, Lagueux was nominated by President Ronald Reagan to a new seat on the United States District Court for the District of Rhode Island created by 98 Stat. 333. Lagueux was confirmed by the United States Senate on March 3, 1986, and received his commission on March 4, 1986. He served as chief judge from 1992 to 1999, and assumed senior status on November 30, 2001.