Sibyl Dunn Warden (1870 – October 31, 1924) was an American author, editor, and educator who was active in Oklahoma.

Biography Sibyl Dunn Warden was born in 1870 in Kansas to Thomas A. Dunn and Mary Dunn. She later moved to Oklahoma City and was a teacher for Oklahoma City Public Schools and Epworth University. She married Sidney Ray Warden in 1906 and the couple founded the Warden Printing Company. Warden served as the secretary-treasurer, while her husband was the company president. She edited the Oklahoma School Herald and wrote the books An Elementary History of the United States and Celebration Days: A Collection of Exercises Suited to the Celebration of Our National Holidays. She died from influenza on October 31, 1924, in Oklahoma City and was buried in Rose Hill Cemetery.

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