Wallace deGroot Cecil Rice (10 November 1859 – 15 December 1939) was an American lawyer, writer, and vexillographer.

After graduating from Harvard University in 1883, Rice was admitted to the bar in Chicago in November 1884.

He married Minnie (Hale) Angier on 8 August 1889 in Chicago, Illinois, and they had two sons, John and Benjamin.

One of his major anthology works was in collaboration with Clarence Darrow in the editing of Infidels and Heretics published in 1929.

He was also an accomplished author in his own right, writing historical pageants, including one celebrating Illinois' centennial and another for the semi-centennial of Birmingham, Alabama.