Ernest Pratt was a human author in the 22nd century, who wrote a series of books set in the Ancient West, featuring the character Cowboy Ralph. Pratt's stories were favorites of Deanna Troi during her childhood, much to the dismay of her parents Ian and Lwaxana. (TLE novel: The Art of the Impossible)

Ernest Pratt was also the name of a 19th century Western novelist in the short-lived TV series Legend, created by Trek producer Michael Piller.