James Aloysius Coolahan (April 26, 1903 – July 16, 1986) was a United States district judge of the United States District Court for the District of New Jersey.
Born in Hoboken, New Jersey, Coolahan received a Bachelor of Laws from Rutgers Law School in 1925.
He was a law clerk from 1925 to 1927, and was in private practice in Jersey City, New Jersey from 1927 to 1949, including service as a first assistant corporation counsel to the City of Hoboken from 1932 to 1943.
[1] On February 19, 1962, Coolahan was nominated by President John F. Kennedy to a seat on the United States District Court for the District of New Jersey vacated by Judge Mendon Morrill.
He served as Chief Judge from 1972 to 1973, assumed senior status on June 1, 1974, and serving in that capacity until his death on July 16, 1986, in Spring Lake, New Jersey.