James J. Gaffney (1863-1946), most often known as J. J. Gaffney, was an American architect in Louisville, Kentucky.
A number of his works are listed on the National Register of Historic Places.
Works include:
Adath Jeshurun Temple and School, 749-757 S. Brook St., Louisville, Kentucky, NRHP-listed
Bosler Fireproof Garage (later called the Morrissey Garage), 423 S. 3rd St., Louisville, Kentucky, NRHP-listed
Gaffney House (1910-1927), River Road between Longview Lane and Boxhill Lane, Louisville, Kentucky, NRHP-listed
Highlands Historic District, Louisville, Kentucky. Gaffney is credited with several homes in the district, including those located at 703 Rubel Avenue (built 1899), 1411 Highland Avenue (built 1898), 2017-19 Murray Avenue (built 1907), and probable attribution to the homes at 1222 and 1224 East Broadway (built 1901).
Marmaduke Building, 520 S. Fourth Ave., Louisville, Kentucky, NRHP-listed
Repton, 314 Ridgedale Rd., Louisville, Kentucky, NRHP-listed
St. James Roman Catholic Church, Rectory, and School, 1430 Bardstown Rd., 1826 and 1818 Edenside Ave., Louisville, Kentucky, NRHP-listed
Taggart House, 5000 Bardstown Rd., Buechel, Kentucky, NRHP-listed
Thierman Apartments, 416-420 W. Breckinridge St., Louisville, Kentucky, NRHP-listed
Waverly Hills Tuberculosis Sanitarium, later known as Waverly Hills Geriatrics Center, 8101 Dixie Hwy., Louisville, Kentucky, NRHP-listed
