Barnett, Haynes & Barnett

Barnett, Haynes & Barnett was a prominent architectural firm based in St. Louis, Missouri. Their credits include many familiar St. Louis landmarks, especially a number related to the local Catholic church. Their best-known building is probably the Cathedral Basilica of St. Louis (the 'new' cathedral). A number of the firm's works are listed on the U.S. National Register of Historic Places.

The three partners were Thomas P. Barnett, John Ignatius Haynes, and George Dennis Barnett. The three were the two sons and the son-in-law of English-born St. Louis architect George I. Barnett. The founding of the firm dates to about 1895; George D. Barnett died in 1922, and the last structure attributed to the firm dates to about 1930.

Their designs include:

Additional works by the firm, in alphabetical rather than chronological order, are (with variations in attribution):

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